Zespół klippela-trenaunaya
Objawy

Zespół Klippela-Trenaunaya (KTS) to rzadkie wrodzone zaburzenie naczyniowe charakteryzujące się klasyczną triadą: naczyniakiem płaskim typu port-wine (obecnym u 90-100% pacjentów), malformacjami żylnymi (70-100%) oraz przerostem kości i tkanek miękkich, najczęściej jednej kończyny dolnej (88% przypadków), prowadzącym do różnicy w długości kończyn średnio około 2 cm. Objawy pojawiają się już przy urodzeniu lub w okresie niemowlęcym, a choroba ma charakter postępujący. Malformacje żylne, w tym żylaki i głębokie zmiany naczyniowe, zwiększają ryzyko zakrzepicy żył głębokich (DVT) i zatorowości płucnej, co stanowi poważne zagrożenie życia. Dodatkowo u 15-50% pacjentów obserwuje się dysfunkcje układu limfatycznego, prowadzące do limfedemy i powikłań w obrębie narządów miednicy. Ból dotyka do 88% chorych i jest związany z żylakami, obrzękiem, infekcjami skóry oraz powikłaniami naczyniowymi. W przebiegu choroby mogą wystąpić także rzadkie powikłania, takie jak krwawienia wewnętrzne, zaburzenia krzepnięcia, czy zmiany kostne i neurologiczne.

Diagnostyka KTS opiera się na badaniach obrazowych, takich jak tomografia komputerowa (CT), rezonans magnetyczny (MRI) oraz ultrasonografia dopplerowska, które pozwalają ocenić zakres malformacji i planować leczenie. Ze względu na progresywny charakter choroby, konieczne jest regularne monitorowanie pacjentów, zwłaszcza różnicy w długości kończyn i nasilenia objawów. Leczenie jest objawowe i wymaga multidyscyplinarnego podejścia, obejmującego kontrolę bólu, terapię przeciwzakrzepową oraz interwencje chirurgiczne w cięższych przypadkach, w tym amputację w sytuacjach skrajnych. Rokowanie zależy od nasilenia zmian naczyniowych i powikłań; większość pacjentów prowadzi względnie normalne życie, jednak ciężkie postacie mogą wiązać się z poważnymi komplikacjami, w tym zagrażającą życiu zatorowością płucną. Edukacja pacjentów i rodzin na temat progresji choroby oraz potencjalnych powikłań jest kluczowa dla skutecznego zarządzania zespołem Klippela-Trenaunaya.

Zespół Klippela-Trenaunaya – Podstawowe informacje

Zespół Klippela-Trenaunaya (KTS) to rzadkie wrodzone zaburzenie naczyniowe, które wpływa na rozwój naczyń krwionośnych, limfatycznych, tkanek miękkich i kości. Syndrom ten zwykle jest obecny już przy urodzeniu i charakteryzuje się klasyczną triadą objawów: obecnością naczyniaka płaskiego (tzw. plama typu port-wine), nieprawidłowym rozwojem żył oraz przerostem tkanek miękkich i kości, najczęściej jednej kończyny.12 Zaburzenie to dotyka różne dzieci w różny sposób – u jednych może wystąpić łagodna forma z niewielkim naczyniakiem płaskim i nieznacznie powiększoną kończyną, u innych może obejmować naczyniak płaski rozciągający się od klatki piersiowej w dół nogi, z dużym obrzękiem i znacznym przerostem jednej kończyny.3

Klasyczna triada objawów zespołu Klippela-Trenaunaya

Naczyniak płaski (plama typu port-wine)

Naczyniak płaski jest zwykle pierwszym zauważalnym objawem zespołu Klippela-Trenaunaya i występuje u 90-100% pacjentów.45 Zmiany te powstają w wyniku nadmiernej ilości małych naczyń krwionośnych (włośniczek) w górnej warstwie skóry i mają charakterystyczny płaski, czerwony lub purpurowy kolor, przypominający wino (stąd nazwa „port-wine stain”).67 Mogą one pokrywać część jednej kończyny, najczęściej nogi, choć mogą również występować na każdym obszarze skóry.8

Kolor znamienia może się zmieniać wraz z wiekiem, stając się jaśniejszy lub ciemniejszy.9 Czasami na zmienionych chorobowo obszarach mogą tworzyć się małe, czerwone pęcherzyki, które łatwo pękają i krwawią.10 W okresie dojrzewania i do 30. roku życia mogą również pojawiać się małe wypełnione krwią pęcherzykowate zmiany, które mogą krwawić.11

Malformacje żylne

Malformacje żylne są drugim charakterystycznym objawem zespołu Klippela-Trenaunaya i występują u 70-100% pacjentów.12 Obejmują one nieprawidłowo rozwinięte żyły, które mogą być powierzchowne lub głębokie. Do najczęstszych zmian należą żylaki – powiększone, skręcone żyły, które są zwykle widoczne na powierzchni nóg, szczególnie na bokach ud i łydek.1314

Żylaki w zespole KTS są często większe niż typowe żylaki i mogą powodować ból.15 Mogą nie być obecne przy urodzeniu i zwykle stają się zauważalne w późnym okresie niemowlęcym, dzieciństwie lub okresie dojrzewania.1617 Malformacje głębokich żył zwiększają ryzyko zakrzepicy żył głębokich (DVT), która może prowadzić do zatorowości płucnej – stanu zagrażającego życiu.1819

Przerost kości i tkanek miękkich

Trzecim kluczowym objawem zespołu Klippela-Trenaunaya jest nieprawidłowy przerost kości i tkanek miękkich, który zaczyna się w okresie niemowlęcym.20 Przerost ten najczęściej dotyczy kończyny dolnej (w 88% przypadków) i zwykle ogranicza się do jednej kończyny (w 71,5% przypadków).2122

Przerost może powodować zwiększoną długość kończyny, co prowadzi do różnicy w długości nóg (średnio około 2 cm), oraz zwiększoną grubość z powodu przerostu skóry i mięśni.23 Nierównomierne wydłużenie kończyny może powodować problemy z chodzeniem, niestabilny chód oraz dolegliwości bólowe.2425 U dziecka może pojawić się także skolioza.26

W rzadkich przypadkach może również wystąpić fuzja palców (syndaktylia) lub obecność dodatkowych palców (polidaktylia).2728

Dodatkowe objawy i manifestacje zespołu Klippela-Trenaunaya

Zaburzenia układu limfatycznego

U 15-50% pacjentów z zespołem Klippela-Trenaunaya występują nieprawidłowości w układzie limfatycznym.29 Mogą one obejmować obecność dodatkowych naczyń limfatycznych, które nie funkcjonują prawidłowo, co prowadzi do wycieku płynu limfatycznego do tkanek i powoduje obrzęk (limfedema).3031

Problemy z układem limfatycznym mogą również powodować tworzenie się torbieli limfatycznych w śledzionie oraz problemy w obszarze miednicy, pęcherza moczowego lub dolnych odcinków jelit.3233

Ból i dyskomfort

Ból jest powszechnym objawem zespołu Klippela-Trenaunaya, dotykającym nawet 88% pacjentów.34 Może on wynikać z różnych powikłań, takich jak:

  • Infekcje skóry (cellulitis)35
  • Obrzęk36
  • Zaangażowanie kości37
  • Problemy z żyłami38
  • Żylaki, które mogą swędzieć i boleć39
  • Zakrzepowe zapalenie żył powierzchownych40
  • Zakrzepica żył głębokich41

Pacjenci często odczuwają tępy lub bolący ból w dotkniętej kończynie w miarę upływu dnia. Najczęściej ból wynika z żylaków. Gdy kończyna jest używana w ciągu dnia, krew i nadmiar płynu mogą gromadzić się w tych żyłach, powodując ból i dyskomfort.42

Obrzęk

Obrzęk jest istotnym objawem zespołu Klippela-Trenaunaya w dotkniętej chorobą kończynie. Dotknięta kończyna może wydawać się większa pod względem obwodu w porównaniu do zdrowych kończyn, ze względu na trudności z odpływem płynów, przerost tkanek miękkich i kości. Obrzęk często nasila się po okresach długotrwałego stania, chodzenia lub innych aktywności.43

Długotrwały obrzęk może powodować ból stawów i dyskomfort, co może wpływać na zdolność dziecka do uczestniczenia w różnych aktywnościach.44

Rzadkie objawy i powikłania

Wewnętrzne krwawienia

U niektórych pacjentów z zespołem Klippela-Trenaunaya mogą wystąpić wewnętrzne krwawienia w wyniku malformacji naczyniowych obejmujących narządy wewnętrzne, takie jak żołądek, odbytnica, pochwa, wątroba, śledziona, pęcherz moczowy, nerki, płuca lub serce.45 Objawy te mogą obejmować:

Krwawienie z odbytnicy i pęcherza moczowego to poważne powikłania malformacji naczyniowych miednicy i zgłaszane są w 1% przypadków.50

Komplikacje zakrzepowe

Pacjenci z zespołem Klippela-Trenaunaya mają zwiększone ryzyko zakrzepicy i zatorowości.51 Do powikłań tych należą:

  • Zakrzepowe zapalenie żył powierzchownych52
  • Zakrzepica żył głębokich (DVT)5354
  • Zatorowość płucna – stan zagrażający życiu, gdy skrzep przemieszcza się do płuc5556

Nawracająca zakrzepica żył głębokich prowadzi do ryzyka zatorowości płucnej, która może być masywna i śmiertelna.57

Inne rzadkie objawy i powikłania

U pacjentów z zespołem Klippela-Trenaunaya mogą również wystąpić następujące rzadkie objawy i powikłania:

  • Zaćma i jaskra58
  • Zwichnięcie biodra przy urodzeniu5960
  • Fioletowo-czerwone zabarwienie skóry w niskiej temperaturze61
  • Problemy z krzepnięciem krwi62
  • Parastezcje63
  • Mięsakowatość64
  • Owrzodzenie65
  • Zapalenie skóry zastoinowe66
  • Dekalcyfikacja zaangażowanych kości67
  • Słabe gojenie się ran68
  • Nadmierna potliwość (hyperhidrosis)69
  • Nadmierne owłosienie (hypertrichosis)70
  • Rozszczep kręgosłupa71
  • Anemia na skutek utraty krwi z łatwego krwawienia72
  • Napady padaczkowe73

Progresja zespołu Klippela-Trenaunaya

Zespół Klippela-Trenaunaya jest chorobą postępującą, co oznacza, że będzie się rozwijać wraz ze wzrostem dziecka.74 Malformacje naczyniowe postępują z czasem, prowadząc do ciągłego przerostu i pogorszenia niewydolności żylnej.75

Progresja objawów w czasie

Chronologiczny rozwój objawów zespołu Klippela-Trenaunaya wygląda zwykle następująco:

  • Przy urodzeniu: Naczyniak płaski jest zwykle obecny i może być jedynym zauważalnym objawem.7677
  • Okres niemowlęcy i wczesne dzieciństwo: Przerost kości i tkanki miękkiej rozpoczyna się w tym okresie, ale może nie być zauważalny.7879
  • Późne niemowlęctwo, dzieciństwo lub okres dojrzewania: Żylaki stają się widoczne i mogą się nasilać.8081
  • Okres chodzenia: Przerost kończyny staje się bardziej widoczny, gdy dziecko zaczyna chodzić, co może prowadzić do nierównego chodu.82
  • Dojrzewanie: Objawy mogą się nasilać.83
  • W okresie dorosłości: Malformacje naczyniowe stają się bardziej widoczne.84

Należy zauważyć, że u wielu kobiet z zespołem Klippela-Trenaunaya występuje nasilenie objawów w okresach zmian hormonalnych, takich jak zespół napięcia przedmiesiączkowego, dojrzewanie, menopauza, okres okołomenopauzalny i ciąża. Te objawy mogą obejmować zwiększony obrzęk, uczucie mrowienia, zmianę koloru i ciężkość w dotkniętej kończynie, zmęczenie, ból głowy, kołatanie serca, brak tolerancji na wysiłek i wydłużony czas krzepnięcia.85

Wpływ na jakość życia

Zespół Klippela-Trenaunaya może mieć znaczący wpływ na jakość życia pacjentów, powodując:

  • Chroniczny ból, który może ograniczać codzienne aktywności8687
  • Problemy z chodzeniem i poruszaniem się8889
  • Trudności z dopasowaniem ubrań i butów90
  • Problemy z biodrami i plecami z powodu różnicy w długości nóg91
  • Problemy emocjonalne i psychologiczne związane z wyglądem92
  • Ograniczenie aktywności fizycznej z powodu bólu i dyskomfortu93

W rzadkich przypadkach, gdy kończyna jest znacznie powiększona, konieczna może być amputacja.94

Monitorowanie i rokowanie zespołu Klippela-Trenaunaya

Diagnostyka i monitorowanie

Zespół Klippela-Trenaunaya może być podejrzewany u dzieci, które mają naczyniak płaski pokrywający ramię lub nogę, ale diagnoza może nie zostać potwierdzona, dopóki dziecko nie zacznie chodzić, a żylaki i przerost kończyny nie staną się bardziej widoczne.95

Regularne monitorowanie stanu pacjenta jest kluczowe, ponieważ choroba postępuje, a objawy mogą się nasilać z czasem. Ważne jest, aby pacjenci z zespołem Klippela-Trenaunaya byli świadomi progresywnego charakteru tego stanu.96

Badania obrazowe, takie jak tomografia komputerowa (CT), obrazowanie metodą rezonansu magnetycznego (MRI) oraz badania doplerowskie w kolorze, są przydatne w określeniu zakresu zespołu i sposobu jego leczenia.97

Rokowanie

Rokowanie w zespole Klippela-Trenaunaya jest zróżnicowane i zależy od nasilenia malformacji naczyniowych.9899 Większość pacjentów z zespołem Klippela-Trenaunaya radzi sobie dobrze, choć choroba może wpływać na ich wygląd.100

Wiele dzieci, szczególnie te z łagodniejszymi przypadkami, prowadzi normalne, zdrowe życie.101 Zespół Klippela-Trenaunaya nie jest chorobą zagrażającą życiu i większość pacjentów kończy z normalnym życiem, jednak wymagana jest stała opieka, najlepiej świadczona przez multidyscyplinarny zespół lekarzy.102

Cięższe przypadki mogą prowadzić do znaczących powikłań, w tym zakrzepicy żył głębokich, która może prowadzić do zatorowości płucnej – stanu zagrażającego życiu.103 Zakrzepy krwi lub poważna utrata krwi mogą być śmiertelne.104

Trwałe leczenie z udziałem lekarza może obniżyć ryzyko powikłań.105 Oczekiwana długość życia jest w dużej mierze normalna, w zależności od ciężkości malformacji, a tym samym prawdopodobieństwa wystąpienia powikłań.106

Podsumowanie objawów zespołu Klippela-Trenaunaya

Zespół Klippela-Trenaunaya jest rzadkim wrodzonym zaburzeniem naczyniowym charakteryzującym się klasyczną triadą objawów: naczyniakiem płaskim (plama typu port-wine), malformacjami żylnymi oraz przerostem kości i tkanek miękkich, zwykle ograniczonym do jednej kończyny. Choroba ta może również powodować nieprawidłowości w układzie limfatycznym, chroniczny ból, obrzęk i różne powikłania, takie jak zakrzepica, krwawienia wewnętrzne i infekcje skóry.

Objawy zespołu Klippela-Trenaunaya mogą być obecne przy urodzeniu, ale mogą również rozwijać się i nasilać wraz z wiekiem. Progresja choroby jest różna u różnych pacjentów, a rokowanie zależy od nasilenia malformacji naczyniowych. Chociaż nie ma lekarstwa na zespół Klippela-Trenaunaya, odpowiednie leczenie objawowe i regularne monitorowanie mogą pomóc w zarządzaniu objawami i zapobieganiu powikłaniom.

Wczesna diagnoza i multidyscyplinarne podejście do leczenia są kluczowe w skutecznym zarządzaniu zespołem Klippela-Trenaunaya. Pacjenci i ich rodziny powinni być edukowani na temat progresywnego charakteru choroby i potencjalnych powikłań, aby zapewnić ścisłą obserwację w celu monitorowania różnicy w długości kończyn i innych objawów.

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  1. 09.04.2026
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Materiały źródłowe

  • #1 Klippel-Trenaunay syndrome: MedlinePlus GeneticsLock
    https://medlineplus.gov/genetics/condition/klippel-trenaunay-syndrome/
    Klippel-Trenaunay syndrome is a condition that affects the development of blood vessels, soft tissues (such as skin and muscles), and bones. The disorder has three characteristic features: a red birthmark called a port-wine stain, abnormal overgrowth of soft tissues and bones, and vein malformations. […] Most people with Klippel-Trenaunay syndrome are born with a port-wine stain. This type of birthmark is caused by swelling of small blood vessels near the surface of the skin. Port-wine stains are typically flat and can vary from pale pink to deep maroon in color. In people with Klippel-Trenaunay syndrome, the port-wine stain usually covers part of one limb. The affected area may become lighter or darker with age. Occasionally, port-wine stains develop small red blisters that break open and bleed easily.
  • #2 Klippel-Trenaunay Syndrome | Boston Children’s Hospital
    https://www.childrenshospital.org/conditions/klippel-trenaunay-syndrome
    Klippel-Trenaunay syndrome (KTS) is a rare congenital (present at birth) vascular anomaly that results in your child having a large number of abnormal blood vessels. Doctors can sometimes see evidence of KTS in a prenatal ultrasound, and the capillary malformation (in the form of a „port-wine stain” birthmark) is almost always apparent at the baby’s birth. KTS often has three characteristic signs: Capillary malformation covering one or more limbs (arm or leg), Hypertrophy — or excessive growth — of a limb (usually a leg), Abnormal blood vessels, including veins, capillaries and lymphatic vessels (vessels that drain fluid that leaks from arteries and veins and return that fluid to the bloodstream). KTS affects different kids in different ways. One child may have a mild form of the syndrome with a small capillary malformation and one hand or foot slightly larger than the other. Another child may have a capillary malformation that runs from their chest down their leg, lots of swelling and one limb that is much larger than the other. Symptoms of KTS include: Blood clots, Cellulitis (infections in the skin) — your child may be more prone to infection because they are more likely to bleed easily as a result of the abnormal capillaries near the surface of their skin, Anemia due to blood loss from easy bleeding, Pain and heaviness of the affected limb, often severe, Difference in size between the affected and non-affected limb, Lymphatic abnormalities such as cysts and swelling, Swollen veins. […] KTS is a progressive condition, which means that it will grow as your child grows. That said, many kids — especially those with mild cases of KTS — go on to live normal, healthy lives. Treatment for your child’s symptoms is the most effective way to manage the disease.
  • #3 Klippel-Trenaunay Syndrome | Boston Children’s Hospital
    https://www.childrenshospital.org/conditions/klippel-trenaunay-syndrome
    Klippel-Trenaunay syndrome (KTS) is a rare congenital (present at birth) vascular anomaly that results in your child having a large number of abnormal blood vessels. Doctors can sometimes see evidence of KTS in a prenatal ultrasound, and the capillary malformation (in the form of a „port-wine stain” birthmark) is almost always apparent at the baby’s birth. KTS often has three characteristic signs: Capillary malformation covering one or more limbs (arm or leg), Hypertrophy — or excessive growth — of a limb (usually a leg), Abnormal blood vessels, including veins, capillaries and lymphatic vessels (vessels that drain fluid that leaks from arteries and veins and return that fluid to the bloodstream). KTS affects different kids in different ways. One child may have a mild form of the syndrome with a small capillary malformation and one hand or foot slightly larger than the other. Another child may have a capillary malformation that runs from their chest down their leg, lots of swelling and one limb that is much larger than the other. Symptoms of KTS include: Blood clots, Cellulitis (infections in the skin) — your child may be more prone to infection because they are more likely to bleed easily as a result of the abnormal capillaries near the surface of their skin, Anemia due to blood loss from easy bleeding, Pain and heaviness of the affected limb, often severe, Difference in size between the affected and non-affected limb, Lymphatic abnormalities such as cysts and swelling, Swollen veins. […] KTS is a progressive condition, which means that it will grow as your child grows. That said, many kids — especially those with mild cases of KTS — go on to live normal, healthy lives. Treatment for your child’s symptoms is the most effective way to manage the disease.
  • #4 Klippel-Trenaunay-Weber Syndrome – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK558989/
    Klippel Trenaunay syndrome is cutaneous vascular malformation syndrome involving a triad of capillary and venous malformation and limb hypertrophy. This is a rare syndrome with a wide spectrum of clinical findings that can manifest during infancy and can progress throughout childhood and adulthood. […] Klippel Trenaunay syndrome primarily involves the capillary, venous and lymphatic systems to varying degrees with tissue and bone hypertrophy. This condition predominantly affects the lower limbs and unilaterally affects the right and left sides equally. In rare cases, upper extremity, head and neck area, and bilateral involvement may be seen. […] Capillary manifestations are flat, red, or purple capillary port-wine stains and are seen in 90 to 100% of cases. This is usually the first clinical finding present at birth and enlarges as the child grows.
  • #5 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    KlippelTrnaunay syndrome (KTS) is a rare congenital vascular bone syndrome characterised by a triad of signs; these being: Capillary vascular malformation (port-wine stain), Venous malformation (eg, varicose veins), Limb hypertrophy (usually affecting only one extremity). […] One or more capillary vascular malformations (port-wine stains) are present in the overwhelming majority of patients with Klippel-Trnaunay syndrome and this is usually the first noticeable feature. Commonly, the capillary malformation occurs over the affected hypertrophic limb, but it can also be present at other sites. Rarely, the affected area can blister and bleed. […] Varicose veins are a common feature of KlippelTrnaunay syndrome. They tend to be larger than normal varicose veins and they can be painful. Varicose veins may not be present initially. They usually become noticeable in late infancy, childhood, or adolescence. Deep veins can also be affected, increasing the risk of developing deep vein thrombosis (DVT).
  • #6 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    People who have KTS may have the following features, which can range from mild to more extensive: […] Port-wine stain. This pink to reddish-purple birthmark is caused by extra tiny blood vessels (capillaries) in the top layer of skin. The birthmark often covers part of one leg but can involve any portion of the skin. It may get darker or lighter with age. […] Vein malformations. These include swollen, twisted veins (varicose veins), usually on the surface of the legs. Deeper malformed veins in the arms, legs, abdomen and pelvis also can occur. There may be spongy tissue filled with small veins in or under the skin. Malformed veins may become more prominent with age. […] Overgrowth of bones and soft tissue. This begins in infancy and may be limited to one leg, but it can occur in an arm or, rarely, in the trunk or face. This overgrowth of bone and tissue creates a larger and longer extremity. Rarely, there may be fusion of fingers or toes or extra fingers or toes.
  • #7 Klippel-Trenaunay Syndrome (KTS): Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/17152-klippel-trenaunay-syndrome-kts
    Klippel-Trenaunay syndrome symptoms include a port-wine stain, long limb and swollen foot. […] People with Klippel-Trenaunay syndrome may have a port-wine stain, long limb, swollen foot and varicose veins. […] Klippel-Trenaunay syndrome symptoms affect your veins, capillaries, soft tissues, bones and lymph vessels in these ways: Capillary malformation (CM). KTS causes a port-wine stain birthmark, which happens when capillaries swell directly beneath your skin. These birthmarks may be the first sign of KTS and vary from light pink to deep wine-red. As you age, these can develop blisters or lighten or darken. […] Vein malformation (VM). Almost everyone with KTS has venous malformations. These may occur in superficial veins, leading to varicose veins on your calves and thighs. They can also happen in deeper veins, which may increase your risk of deep vein thrombosis (DVT).
  • #8 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    People who have KTS may have the following features, which can range from mild to more extensive: […] Port-wine stain. This pink to reddish-purple birthmark is caused by extra tiny blood vessels (capillaries) in the top layer of skin. The birthmark often covers part of one leg but can involve any portion of the skin. It may get darker or lighter with age. […] Vein malformations. These include swollen, twisted veins (varicose veins), usually on the surface of the legs. Deeper malformed veins in the arms, legs, abdomen and pelvis also can occur. There may be spongy tissue filled with small veins in or under the skin. Malformed veins may become more prominent with age. […] Overgrowth of bones and soft tissue. This begins in infancy and may be limited to one leg, but it can occur in an arm or, rarely, in the trunk or face. This overgrowth of bone and tissue creates a larger and longer extremity. Rarely, there may be fusion of fingers or toes or extra fingers or toes.
  • #9 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    People who have KTS may have the following features, which can range from mild to more extensive: […] Port-wine stain. This pink to reddish-purple birthmark is caused by extra tiny blood vessels (capillaries) in the top layer of skin. The birthmark often covers part of one leg but can involve any portion of the skin. It may get darker or lighter with age. […] Vein malformations. These include swollen, twisted veins (varicose veins), usually on the surface of the legs. Deeper malformed veins in the arms, legs, abdomen and pelvis also can occur. There may be spongy tissue filled with small veins in or under the skin. Malformed veins may become more prominent with age. […] Overgrowth of bones and soft tissue. This begins in infancy and may be limited to one leg, but it can occur in an arm or, rarely, in the trunk or face. This overgrowth of bone and tissue creates a larger and longer extremity. Rarely, there may be fusion of fingers or toes or extra fingers or toes.
  • #10 Klippel-Trenaunay syndrome: MedlinePlus GeneticsLock
    https://medlineplus.gov/genetics/condition/klippel-trenaunay-syndrome/
    Klippel-Trenaunay syndrome is a condition that affects the development of blood vessels, soft tissues (such as skin and muscles), and bones. The disorder has three characteristic features: a red birthmark called a port-wine stain, abnormal overgrowth of soft tissues and bones, and vein malformations. […] Most people with Klippel-Trenaunay syndrome are born with a port-wine stain. This type of birthmark is caused by swelling of small blood vessels near the surface of the skin. Port-wine stains are typically flat and can vary from pale pink to deep maroon in color. In people with Klippel-Trenaunay syndrome, the port-wine stain usually covers part of one limb. The affected area may become lighter or darker with age. Occasionally, port-wine stains develop small red blisters that break open and bleed easily.
  • #11 Klippel-Trénaunay Syndrome – Seattle Children’s
    https://www.seattlechildrens.org/conditions/klippel-trenaunay-syndrome-kts/
    Klippel-Trnaunay syndrome (KTS) is a rare disorder that is present at birth (congenital). Children with KTS have 1 or more of these signs: […] Children with KTS often have 1 or more of these signs: […] Oversized limbs or bones are rarely present at birth. They may start to get much bigger in the first few months or years of life or during puberty. […] In some children with a capillary malformation, it gets small, blood-filled, bubble-like growths that can bleed. This tends to happen between puberty and age 30.
  • #12 Klippel-Trenaunay-Weber Syndrome – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK558989/
    Venous malformations are seen in 70 to 100% of patients and consist of varicosities in the superficial and deep venous systems, persistent embryonic veins, and aplasia/hypoplasia with valvular incompetence. […] Lymphatic malformations are seen in 15 to 50% of cases and consist of lymphedema and cystic lymphatic collections. […] Klippel Trenaunay syndrome has a wide spectrum of clinical findings, and the prognosis is related to the severity of vascular malformations. The malformations progress over time with ongoing overgrowth and worsening venous insufficiency. […] Recurrent deep venous thrombosis leads to the risk of pulmonary embolism, which can be massive and fatal. […] Patients with Klippel-Trenaunay syndrome need to be aware of the progressive nature of this condition. In children who are diagnosed with KTS, parents need to be educated on possible complications and to ensure close follow-up to monitor for limb length discrepancy and timely management.
  • #13 Klippel-Trenaunay syndrome: MedlinePlus GeneticsLock
    https://medlineplus.gov/genetics/condition/klippel-trenaunay-syndrome/
    Klippel-Trenaunay syndrome is also associated with overgrowth of bones and soft tissues beginning in infancy. Usually this abnormal growth is limited to one limb, most often one leg. However, overgrowth can also affect the arms or, rarely, the torso. The abnormal growth can cause pain, a feeling of heaviness, and reduced movement in the affected area. If the overgrowth causes one leg to be longer than the other, it can also lead to problems with walking. […] Malformations of veins are the third major feature of Klippel-Trenaunay syndrome. These abnormalities include varicose veins, which are swollen and twisted veins near the surface of the skin that often cause pain. Varicose veins usually occur on the sides of the upper legs and calves. Veins deep in the limbs can also be abnormal in people with Klippel-Trenaunay syndrome. Malformations of deep veins increase the risk of a type of blood clot called a deep vein thrombosis (DVT). If a DVT travels through the bloodstream and lodges in the lungs, it can cause a life-threatening blood clot known as a pulmonary embolism (PE).
  • #14 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    KlippelTrnaunay syndrome (KTS) is a rare congenital vascular bone syndrome characterised by a triad of signs; these being: Capillary vascular malformation (port-wine stain), Venous malformation (eg, varicose veins), Limb hypertrophy (usually affecting only one extremity). […] One or more capillary vascular malformations (port-wine stains) are present in the overwhelming majority of patients with Klippel-Trnaunay syndrome and this is usually the first noticeable feature. Commonly, the capillary malformation occurs over the affected hypertrophic limb, but it can also be present at other sites. Rarely, the affected area can blister and bleed. […] Varicose veins are a common feature of KlippelTrnaunay syndrome. They tend to be larger than normal varicose veins and they can be painful. Varicose veins may not be present initially. They usually become noticeable in late infancy, childhood, or adolescence. Deep veins can also be affected, increasing the risk of developing deep vein thrombosis (DVT).
  • #15 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    KlippelTrnaunay syndrome (KTS) is a rare congenital vascular bone syndrome characterised by a triad of signs; these being: Capillary vascular malformation (port-wine stain), Venous malformation (eg, varicose veins), Limb hypertrophy (usually affecting only one extremity). […] One or more capillary vascular malformations (port-wine stains) are present in the overwhelming majority of patients with Klippel-Trnaunay syndrome and this is usually the first noticeable feature. Commonly, the capillary malformation occurs over the affected hypertrophic limb, but it can also be present at other sites. Rarely, the affected area can blister and bleed. […] Varicose veins are a common feature of KlippelTrnaunay syndrome. They tend to be larger than normal varicose veins and they can be painful. Varicose veins may not be present initially. They usually become noticeable in late infancy, childhood, or adolescence. Deep veins can also be affected, increasing the risk of developing deep vein thrombosis (DVT).
  • #16 FloridaHealthFinder | Klippel-Trenaunay syndrome | Health Encyclopedia | FloridaHealthFinder
    https://quality.healthfinder.fl.gov/health-encyclopedia/HIE/1/000150
    Klippel-Trenaunay syndrome (KTS) is a rare condition that is typically present at birth. The syndrome often involves port wine stains, excess growth of bones and soft tissue, and varicose veins. […] Symptoms of KTS include: Many port wine stains or other blood vessel problems, including dark spots on the skin. Varicose veins (may be seen in early infancy, but are more likely to be seen later in childhood or adolescence). Unstable gait due to limb-length difference (involved limb is longer). Bone, vein, or nerve pain. […] Other possible symptoms: Bleeding from the rectum. Blood in the urine. […] Most people with KTS do well, although the condition may affect their appearance.
  • #17 Klippel-Trenaunay syndrome | Great Ormond Street Hospital
    https://www.gosh.nhs.uk/conditions-and-treatments/conditions-we-treat/klippel-trenaunay-syndrome/
    A syndrome is a collection of symptoms that often appear together. The symptoms associated with Klippel-Trenaunay syndrome are port wine stains, varicose veins and hypertrophy (extra growth) of one limb. […] Klippel-Trenaunay syndrome consists of three symptoms often seen together: port wine stains, varicose veins and limb hypertrophy. […] The port wine stain is a flat, red or purple mark on the skin that is often the only noticeable symptom of Klippel-Trenaunay syndrome at birth. […] Varicose veins are another feature of Klippel-Trenaunay syndrome, and are much larger and cover a wider area than normal varicose veins. […] Limb hypertrophy is the third feature of Klippel-Trenaunay syndrome, although it is not always noticeable at birth and during early childhood. […] The affected leg is bigger widthways because the skin and muscles grow more and become thicker.
  • #18 Klippel-Trenaunay syndrome: MedlinePlus GeneticsLock
    https://medlineplus.gov/genetics/condition/klippel-trenaunay-syndrome/
    Klippel-Trenaunay syndrome is also associated with overgrowth of bones and soft tissues beginning in infancy. Usually this abnormal growth is limited to one limb, most often one leg. However, overgrowth can also affect the arms or, rarely, the torso. The abnormal growth can cause pain, a feeling of heaviness, and reduced movement in the affected area. If the overgrowth causes one leg to be longer than the other, it can also lead to problems with walking. […] Malformations of veins are the third major feature of Klippel-Trenaunay syndrome. These abnormalities include varicose veins, which are swollen and twisted veins near the surface of the skin that often cause pain. Varicose veins usually occur on the sides of the upper legs and calves. Veins deep in the limbs can also be abnormal in people with Klippel-Trenaunay syndrome. Malformations of deep veins increase the risk of a type of blood clot called a deep vein thrombosis (DVT). If a DVT travels through the bloodstream and lodges in the lungs, it can cause a life-threatening blood clot known as a pulmonary embolism (PE).
  • #19 Klippel-Trenaunay Syndrome – UChicago Medicine
    https://www.uchicagomedicine.org/comer/conditions-services/vascular-anomalies/klippel-trenaunay-syndrome
    Klippel-Trenaunay syndrome (KTS) is a rare vascular anomaly that involves the blood vessels, the lymphatic system and nearby tissues. The congenital (present at birth) condition is typically seen in the arms and adjacent shoulder or legs and adjacent hips or pelvis. […] The symptoms of Klippel-Trenaunay syndrome vary from patient to patient, but the following features are characteristic of the disease: A red birthmark: Most children with Klippel-Trenaunay syndrome are born with a red birthmark (also known as a port-wine stain) caused by swelling of the small blood vessels near the skin surface. The birthmarks are typically flat, cover part of one limb, and vary in color from pink to dark purple. The lesion may also develop small red blisters that easily break open and bleed. […] Vein malformations (varicosities): Varicose veins (twisted and swollen veins) are not always present at birth and may appear when a child with KTS begins to walk. While mostly superficial, these malformations may be found in muscles and bones or even organs such as the spleen, liver, bladder or colon. Malformations of large veins can increase the risk of deep vein thrombosis, a type of blood clot that can lodge in the lungs and cause a life-threatening condition known as pulmonary embolism.
  • #20 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    People who have KTS may have the following features, which can range from mild to more extensive: […] Port-wine stain. This pink to reddish-purple birthmark is caused by extra tiny blood vessels (capillaries) in the top layer of skin. The birthmark often covers part of one leg but can involve any portion of the skin. It may get darker or lighter with age. […] Vein malformations. These include swollen, twisted veins (varicose veins), usually on the surface of the legs. Deeper malformed veins in the arms, legs, abdomen and pelvis also can occur. There may be spongy tissue filled with small veins in or under the skin. Malformed veins may become more prominent with age. […] Overgrowth of bones and soft tissue. This begins in infancy and may be limited to one leg, but it can occur in an arm or, rarely, in the trunk or face. This overgrowth of bone and tissue creates a larger and longer extremity. Rarely, there may be fusion of fingers or toes or extra fingers or toes.
  • #21 The Klippel-Trenaunay Syndrome in 2022 | VHRM
    https://www.dovepress.com/the-klippel-trnaunay-syndrome-in-2022-unravelling-its-genetic-and-mole-peer-reviewed-fulltext-article-VHRM
    The Klippel-Trnaunay syndrome is an unusual syndrome of vascular and dermatologic manifestation in which patients demonstrate hemihypertrophy of the soft tissue and bones of one limb, cutaneous haemangiomas and varicosities in anatomically abnormal positions. […] KTS is a complex, combined disorder made up of capillary, lymphatic and venous malformations with overgrowth of the affected limb. […] Limb hypertrophy occurs in 67% of KTS patients, with 88% involving the lower limb and 71.5% involving a single limb. […] Patients can therefore present with a variety of symptoms including internal haemorrhage and rectal bleeding. […] The presence of the limb overgrowth with the vascular abnormalities in KTS was compared with other congenital leg-length discrepancy syndromes, which had co-existing vascular morphogenic anomalies.
  • #22
    https://www.jpccr.eu/Diversity-and-frequency-of-symptoms-in-Klippel-Trenaunay-syndrome,187550,0,2.html
    Limb overgrowth is a dominant symptom of KTS, appearing in 67% – 100% of patients. […] Overgrowth is caused by vascular malformations which, on their own, are another symptom of KTS. […] Port-wine stains can appear to up to 98% of patients, and are located mostly on the lower limbs and/or torso. […] The variety of anomalies appearing in Klippel-Trenaunay syndrome is large and diversified.
  • #23 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    Limb hypertrophy affects the lower limb in most cases (up to 95%), but hypertrophy can also involve the trunk, and head and neck. Limb enlargement is disproportionate, with the girth of the limb enlarging more than length. Increased girth is due to hypertrophy of the skin and muscles whereas increased limb length is due to bone overgrowth. The average difference in limb length is around 2 cm. The length discrepancy can cause uneven walking, unstable gait, or pain. The child might appear to have scoliosis. […] The possible complications of Klippel-Trnaunay syndrome include DVT due to malformations of deep veins, pulmonary embolism, cellulitis, lymphoedema, and internal bleeding. […] The diagnosis of KlippelTrnaunay syndrome is made clinically when two of the three classic signs of port-wine stain, varicose veins, and limb hypertrophy are present. While a diagnosis of Klippel-Trnaunay syndrome can be suspected in a newborn when a port-wine stain is present, the confirmation comes later when other symptoms become more apparent.
  • #24 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    Limb hypertrophy affects the lower limb in most cases (up to 95%), but hypertrophy can also involve the trunk, and head and neck. Limb enlargement is disproportionate, with the girth of the limb enlarging more than length. Increased girth is due to hypertrophy of the skin and muscles whereas increased limb length is due to bone overgrowth. The average difference in limb length is around 2 cm. The length discrepancy can cause uneven walking, unstable gait, or pain. The child might appear to have scoliosis. […] The possible complications of Klippel-Trnaunay syndrome include DVT due to malformations of deep veins, pulmonary embolism, cellulitis, lymphoedema, and internal bleeding. […] The diagnosis of KlippelTrnaunay syndrome is made clinically when two of the three classic signs of port-wine stain, varicose veins, and limb hypertrophy are present. While a diagnosis of Klippel-Trnaunay syndrome can be suspected in a newborn when a port-wine stain is present, the confirmation comes later when other symptoms become more apparent.
  • #25 FloridaHealthFinder | Klippel-Trenaunay syndrome | Health Encyclopedia | FloridaHealthFinder
    https://quality.healthfinder.fl.gov/health-encyclopedia/HIE/1/000150
    Klippel-Trenaunay syndrome (KTS) is a rare condition that is typically present at birth. The syndrome often involves port wine stains, excess growth of bones and soft tissue, and varicose veins. […] Symptoms of KTS include: Many port wine stains or other blood vessel problems, including dark spots on the skin. Varicose veins (may be seen in early infancy, but are more likely to be seen later in childhood or adolescence). Unstable gait due to limb-length difference (involved limb is longer). Bone, vein, or nerve pain. […] Other possible symptoms: Bleeding from the rectum. Blood in the urine. […] Most people with KTS do well, although the condition may affect their appearance.
  • #26 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    Limb hypertrophy affects the lower limb in most cases (up to 95%), but hypertrophy can also involve the trunk, and head and neck. Limb enlargement is disproportionate, with the girth of the limb enlarging more than length. Increased girth is due to hypertrophy of the skin and muscles whereas increased limb length is due to bone overgrowth. The average difference in limb length is around 2 cm. The length discrepancy can cause uneven walking, unstable gait, or pain. The child might appear to have scoliosis. […] The possible complications of Klippel-Trnaunay syndrome include DVT due to malformations of deep veins, pulmonary embolism, cellulitis, lymphoedema, and internal bleeding. […] The diagnosis of KlippelTrnaunay syndrome is made clinically when two of the three classic signs of port-wine stain, varicose veins, and limb hypertrophy are present. While a diagnosis of Klippel-Trnaunay syndrome can be suspected in a newborn when a port-wine stain is present, the confirmation comes later when other symptoms become more apparent.
  • #27 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    People who have KTS may have the following features, which can range from mild to more extensive: […] Port-wine stain. This pink to reddish-purple birthmark is caused by extra tiny blood vessels (capillaries) in the top layer of skin. The birthmark often covers part of one leg but can involve any portion of the skin. It may get darker or lighter with age. […] Vein malformations. These include swollen, twisted veins (varicose veins), usually on the surface of the legs. Deeper malformed veins in the arms, legs, abdomen and pelvis also can occur. There may be spongy tissue filled with small veins in or under the skin. Malformed veins may become more prominent with age. […] Overgrowth of bones and soft tissue. This begins in infancy and may be limited to one leg, but it can occur in an arm or, rarely, in the trunk or face. This overgrowth of bone and tissue creates a larger and longer extremity. Rarely, there may be fusion of fingers or toes or extra fingers or toes.
  • #28 Klippel-Trenaunay syndrome: MedlinePlus GeneticsLock
    https://medlineplus.gov/genetics/condition/klippel-trenaunay-syndrome/
    Other complications of Klippel-Trenaunay syndrome can include a type of skin infection called cellulitis, swelling caused by a buildup of fluid (lymphedema), and internal bleeding from abnormal blood vessels. Less commonly, this condition is also associated with fusion of certain fingers or toes (syndactyly) or the presence of extra digits (polydactyly).
  • #29 Klippel-Trenaunay-Weber Syndrome – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK558989/
    Venous malformations are seen in 70 to 100% of patients and consist of varicosities in the superficial and deep venous systems, persistent embryonic veins, and aplasia/hypoplasia with valvular incompetence. […] Lymphatic malformations are seen in 15 to 50% of cases and consist of lymphedema and cystic lymphatic collections. […] Klippel Trenaunay syndrome has a wide spectrum of clinical findings, and the prognosis is related to the severity of vascular malformations. The malformations progress over time with ongoing overgrowth and worsening venous insufficiency. […] Recurrent deep venous thrombosis leads to the risk of pulmonary embolism, which can be massive and fatal. […] Patients with Klippel-Trenaunay syndrome need to be aware of the progressive nature of this condition. In children who are diagnosed with KTS, parents need to be educated on possible complications and to ensure close follow-up to monitor for limb length discrepancy and timely management.
  • #30 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #31 Klippel-Trenaunay Syndrome (KTS): Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/17152-klippel-trenaunay-syndrome-kts
    Soft tissue and bone overgrowth. Your limbs may grow larger than whats typical, starting in infancy. Overgrowth often affects only one limb, usually your leg. One leg might grow longer than the other. This can limit your range of motion. […] Lymphatic malformation (LM). Some people with KTS also have extra or unusual lymph vessels, which carry lymph. In KTS, the extra lymphatic vessels often dont work as they should. They may leak lymphatic fluid, cause foot swelling or cause issues in your pelvis, bladder or lower intestines. […] Yes, it can be. Varicose veins may itch or hurt. Blood flow issues can cause swelling and pain in your lower limbs. Overgrowth of a leg can cause pain or a heavy feeling. […] The outlook for KTS can vary. It depends on how severe your vascular malformations are. They tend to get worse over time. You need quick treatment for GI bleeding or blood clots in your deep veins or lungs. Blood clots or severe blood loss can be fatal. […] Ongoing treatment with your healthcare provider can lower your risk of complications.
  • #32 Klippel-Trenaunay Syndrome (KTS): Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/17152-klippel-trenaunay-syndrome-kts
    Soft tissue and bone overgrowth. Your limbs may grow larger than whats typical, starting in infancy. Overgrowth often affects only one limb, usually your leg. One leg might grow longer than the other. This can limit your range of motion. […] Lymphatic malformation (LM). Some people with KTS also have extra or unusual lymph vessels, which carry lymph. In KTS, the extra lymphatic vessels often dont work as they should. They may leak lymphatic fluid, cause foot swelling or cause issues in your pelvis, bladder or lower intestines. […] Yes, it can be. Varicose veins may itch or hurt. Blood flow issues can cause swelling and pain in your lower limbs. Overgrowth of a leg can cause pain or a heavy feeling. […] The outlook for KTS can vary. It depends on how severe your vascular malformations are. They tend to get worse over time. You need quick treatment for GI bleeding or blood clots in your deep veins or lungs. Blood clots or severe blood loss can be fatal. […] Ongoing treatment with your healthcare provider can lower your risk of complications.
  • #33 Klippel-Trenaunay Syndrome – K-T Support Group
    https://k-t.org/about-kt/what-is-kts
    Klippel-Trenaunay (K-T) Syndrome is characterized by a localized or diffuse capillary malformation that overlies a venous malformation and/or lymphatic malformation with associated soft tissue and bone overgrowth (hypertrophy). The capillary malformation is typically substantial, varicose veins are often quite numerous, and bone and soft tissue hypertrophy are variable. The affected limb is either larger or smaller than the unaffected limb. Hypertrophy occurs most commonly in the lower limbs but may affect the arms, the face, the head, or internal organs. Additionally, a wide range of other skeletal and skin abnormalities sometimes coexists. […] Complications may include bleeding, cellulitis, venous thrombosis, pulmonary embolism, lymphatic „blebs”, skin breakdown and ulceration, vertebral scoliosis, gait abnormalities, joint damage, and chronic pain. Difficulty finding properly fitted clothing and/or shoes is common. Associated abnormalities such as macrodactyly, lymphedema, or involvement of the abdominal and pelvic organs may also occur.
  • #34 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #35 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #36 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #37 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #38 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #39 Klippel-Trenaunay Syndrome (KTS): Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/17152-klippel-trenaunay-syndrome-kts
    Soft tissue and bone overgrowth. Your limbs may grow larger than whats typical, starting in infancy. Overgrowth often affects only one limb, usually your leg. One leg might grow longer than the other. This can limit your range of motion. […] Lymphatic malformation (LM). Some people with KTS also have extra or unusual lymph vessels, which carry lymph. In KTS, the extra lymphatic vessels often dont work as they should. They may leak lymphatic fluid, cause foot swelling or cause issues in your pelvis, bladder or lower intestines. […] Yes, it can be. Varicose veins may itch or hurt. Blood flow issues can cause swelling and pain in your lower limbs. Overgrowth of a leg can cause pain or a heavy feeling. […] The outlook for KTS can vary. It depends on how severe your vascular malformations are. They tend to get worse over time. You need quick treatment for GI bleeding or blood clots in your deep veins or lungs. Blood clots or severe blood loss can be fatal. […] Ongoing treatment with your healthcare provider can lower your risk of complications.
  • #40 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #41 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #42 Klippel-Trenaunay syndrome | Children’s Health Queensland
    https://www.childrens.health.qld.gov.au/health-a-to-z/klippel-trenaunay-syndrome
    Children often feel dull or achy pain in their affected limb as the day progresses. Pain is most commonly due to varicose veins. […] As the limb is used during the day, blood and excess fluid may pool in these veins causing pain and discomfort for your child. This pain may reduce your childs ability and desire to participate in activities, so be sure to monitor the level of pain to discuss with your OT.
  • #43 Klippel-Trenaunay syndrome | Children’s Health Queensland
    https://www.childrens.health.qld.gov.au/health-a-to-z/klippel-trenaunay-syndrome
    KTS is typically characterised by three symptoms: […] Vascular anomalies, including superficial haemangioma, skin discolouration, and varicose veins […] Bony and soft tissue hypertrophy (i.e. over growth of the soft tissue and/or bones), resulting in limb size discrepancies in both circumference and length […] Possible arteriovenous fistulae (uncommon vascular malformations that exhibit as painful bulging veins). […] Swelling is a large part of KTS in the affected limb. The affected limb may appear larger in width compared to the non-affect limbs, due to difficulties with fluid drainage, soft tissue and bony overgrowth. The swelling often increases after periods of prolonged standing, walking, or other activities. Prolonged swelling will often cause join pain and discomfort, which may impact upon your childs abilities to participate in activities.
  • #44 Klippel-Trenaunay syndrome | Children’s Health Queensland
    https://www.childrens.health.qld.gov.au/health-a-to-z/klippel-trenaunay-syndrome
    KTS is typically characterised by three symptoms: […] Vascular anomalies, including superficial haemangioma, skin discolouration, and varicose veins […] Bony and soft tissue hypertrophy (i.e. over growth of the soft tissue and/or bones), resulting in limb size discrepancies in both circumference and length […] Possible arteriovenous fistulae (uncommon vascular malformations that exhibit as painful bulging veins). […] Swelling is a large part of KTS in the affected limb. The affected limb may appear larger in width compared to the non-affect limbs, due to difficulties with fluid drainage, soft tissue and bony overgrowth. The swelling often increases after periods of prolonged standing, walking, or other activities. Prolonged swelling will often cause join pain and discomfort, which may impact upon your childs abilities to participate in activities.
  • #45 Klippel Trenaunay Syndrome KTS
    https://www.brainfacts.org/diseases-and-disorders/neurological-disorders-az/diseases-a-to-z-from-ninds/klippel-trenaunay-syndrome-kts
    Klippel-Trenaunay syndrome (KTS) is a rare congenital malformation involving blood and lymph vessels and abnormal growth of soft and bone tissue. Typical symptoms include hemangiomas (abnormal benign growths on the skin consisting of masses of blood vessels) and varicose veins. Fused toes or fingers, or extra toes or fingers, may be present. In some cases, internal bleeding may occur as a result of blood vessel malformations involving organs such as the stomach, rectum, vagina, liver, spleen, bladder, kidneys, lungs, or heart. Individuals are also at risk for blood clots. […] KTS is often a progressive disorder, and complications may be life-threatening. However, many individuals can live well while managing their symptoms.
  • #46 FloridaHealthFinder | Klippel-Trenaunay syndrome | Health Encyclopedia | FloridaHealthFinder
    https://quality.healthfinder.fl.gov/health-encyclopedia/HIE/1/000150
    Klippel-Trenaunay syndrome (KTS) is a rare condition that is typically present at birth. The syndrome often involves port wine stains, excess growth of bones and soft tissue, and varicose veins. […] Symptoms of KTS include: Many port wine stains or other blood vessel problems, including dark spots on the skin. Varicose veins (may be seen in early infancy, but are more likely to be seen later in childhood or adolescence). Unstable gait due to limb-length difference (involved limb is longer). Bone, vein, or nerve pain. […] Other possible symptoms: Bleeding from the rectum. Blood in the urine. […] Most people with KTS do well, although the condition may affect their appearance.
  • #47 FloridaHealthFinder | Klippel-Trenaunay syndrome | Health Encyclopedia | FloridaHealthFinder
    https://quality.healthfinder.fl.gov/health-encyclopedia/HIE/1/000150
    Klippel-Trenaunay syndrome (KTS) is a rare condition that is typically present at birth. The syndrome often involves port wine stains, excess growth of bones and soft tissue, and varicose veins. […] Symptoms of KTS include: Many port wine stains or other blood vessel problems, including dark spots on the skin. Varicose veins (may be seen in early infancy, but are more likely to be seen later in childhood or adolescence). Unstable gait due to limb-length difference (involved limb is longer). Bone, vein, or nerve pain. […] Other possible symptoms: Bleeding from the rectum. Blood in the urine. […] Most people with KTS do well, although the condition may affect their appearance.
  • #48 What is Klippel-Trenaunay syndrome
    https://sturge-weber.org/new-to-swf/understanding-kt.html
    Klippel-Trenaunay Syndrome (congenital dysplastic angiopathy) is a congenital vascular disorder of unknown cause. Klippel-Trenaunay (KT) is characterized by a triad of symptoms: Port Wine Birthmark (capillary malformation) covering one or more limbs, congenital vascular anomalies, usually venous varicosities, absence or duplication of a venous structure, malformation and hypertrophy (enlargement of the limb) or atrophy (withering or smaller limb). KTS involves the lower limbs in approximately 90% of the cases. In rare instances, there is an absence of Port Wine Birthmark and not all three symptoms need to be present for the syndrome to exist. Each case of KT is different, with patients having varying symptoms and severity. Symptoms associated with KT can include internal organ involvement, hematuria (blood in the urine) rectal bleeding, vaginal bleeding, and cellulitis (infection within the skin).
  • #49 What is Klippel-Trenaunay syndrome
    https://sturge-weber.org/new-to-swf/understanding-kt.html
    Klippel-Trenaunay Syndrome (congenital dysplastic angiopathy) is a congenital vascular disorder of unknown cause. Klippel-Trenaunay (KT) is characterized by a triad of symptoms: Port Wine Birthmark (capillary malformation) covering one or more limbs, congenital vascular anomalies, usually venous varicosities, absence or duplication of a venous structure, malformation and hypertrophy (enlargement of the limb) or atrophy (withering or smaller limb). KTS involves the lower limbs in approximately 90% of the cases. In rare instances, there is an absence of Port Wine Birthmark and not all three symptoms need to be present for the syndrome to exist. Each case of KT is different, with patients having varying symptoms and severity. Symptoms associated with KT can include internal organ involvement, hematuria (blood in the urine) rectal bleeding, vaginal bleeding, and cellulitis (infection within the skin).
  • #50 Klippel-Trénaunay syndrome | Radiology Reference Article | Radiopaedia.org
    https://radiopaedia.org/articles/klippel-trenaunay-syndrome-1?lang=us
    This is the most common cutaneous manifestation of Klippel-Trnaunay syndrome. Typically, capillary malformations involve the enlarged limb, although skin changes may be seen on any part of the body. The lower limb is the affected site in ~95% of patients. […] Present in a majority of patients with Klippel-Trnaunay syndrome, commonly located on the lateral aspect of the affected limb/leg. […] Venous malformations can occur in both the superficial and deep venous systems. […] Rectal and bladder hemorrhage are serious complications of pelvic vascular malformations and have been reported in 1% of cases. […] Treatment in a majority of patients is conservative and includes application of graded compressive stockings or pneumatic compression devices to the enlarged extremity. […] Surgical treatment may include epiphysiodesis to control leg length discrepancy, excision of soft tissue hypertrophy, and stripping of superficial varicose veins. […] If capillary malformations are large enough, they may sequester platelets, possibly leading to the Kasabach-Merritt syndrome (consumptive coagulopathy).
  • #51 Klippel Trenaunay Syndrome KTS
    https://www.brainfacts.org/diseases-and-disorders/neurological-disorders-az/diseases-a-to-z-from-ninds/klippel-trenaunay-syndrome-kts
    Klippel-Trenaunay syndrome (KTS) is a rare congenital malformation involving blood and lymph vessels and abnormal growth of soft and bone tissue. Typical symptoms include hemangiomas (abnormal benign growths on the skin consisting of masses of blood vessels) and varicose veins. Fused toes or fingers, or extra toes or fingers, may be present. In some cases, internal bleeding may occur as a result of blood vessel malformations involving organs such as the stomach, rectum, vagina, liver, spleen, bladder, kidneys, lungs, or heart. Individuals are also at risk for blood clots. […] KTS is often a progressive disorder, and complications may be life-threatening. However, many individuals can live well while managing their symptoms.
  • #52 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #53 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #54 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    KlippelTrnaunay syndrome (KTS) is a rare congenital vascular bone syndrome characterised by a triad of signs; these being: Capillary vascular malformation (port-wine stain), Venous malformation (eg, varicose veins), Limb hypertrophy (usually affecting only one extremity). […] One or more capillary vascular malformations (port-wine stains) are present in the overwhelming majority of patients with Klippel-Trnaunay syndrome and this is usually the first noticeable feature. Commonly, the capillary malformation occurs over the affected hypertrophic limb, but it can also be present at other sites. Rarely, the affected area can blister and bleed. […] Varicose veins are a common feature of KlippelTrnaunay syndrome. They tend to be larger than normal varicose veins and they can be painful. Varicose veins may not be present initially. They usually become noticeable in late infancy, childhood, or adolescence. Deep veins can also be affected, increasing the risk of developing deep vein thrombosis (DVT).
  • #55 Klippel-Trenaunay syndrome: MedlinePlus GeneticsLock
    https://medlineplus.gov/genetics/condition/klippel-trenaunay-syndrome/
    Klippel-Trenaunay syndrome is also associated with overgrowth of bones and soft tissues beginning in infancy. Usually this abnormal growth is limited to one limb, most often one leg. However, overgrowth can also affect the arms or, rarely, the torso. The abnormal growth can cause pain, a feeling of heaviness, and reduced movement in the affected area. If the overgrowth causes one leg to be longer than the other, it can also lead to problems with walking. […] Malformations of veins are the third major feature of Klippel-Trenaunay syndrome. These abnormalities include varicose veins, which are swollen and twisted veins near the surface of the skin that often cause pain. Varicose veins usually occur on the sides of the upper legs and calves. Veins deep in the limbs can also be abnormal in people with Klippel-Trenaunay syndrome. Malformations of deep veins increase the risk of a type of blood clot called a deep vein thrombosis (DVT). If a DVT travels through the bloodstream and lodges in the lungs, it can cause a life-threatening blood clot known as a pulmonary embolism (PE).
  • #56 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    Limb hypertrophy affects the lower limb in most cases (up to 95%), but hypertrophy can also involve the trunk, and head and neck. Limb enlargement is disproportionate, with the girth of the limb enlarging more than length. Increased girth is due to hypertrophy of the skin and muscles whereas increased limb length is due to bone overgrowth. The average difference in limb length is around 2 cm. The length discrepancy can cause uneven walking, unstable gait, or pain. The child might appear to have scoliosis. […] The possible complications of Klippel-Trnaunay syndrome include DVT due to malformations of deep veins, pulmonary embolism, cellulitis, lymphoedema, and internal bleeding. […] The diagnosis of KlippelTrnaunay syndrome is made clinically when two of the three classic signs of port-wine stain, varicose veins, and limb hypertrophy are present. While a diagnosis of Klippel-Trnaunay syndrome can be suspected in a newborn when a port-wine stain is present, the confirmation comes later when other symptoms become more apparent.
  • #57 Klippel-Trenaunay-Weber Syndrome – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK558989/
    Venous malformations are seen in 70 to 100% of patients and consist of varicosities in the superficial and deep venous systems, persistent embryonic veins, and aplasia/hypoplasia with valvular incompetence. […] Lymphatic malformations are seen in 15 to 50% of cases and consist of lymphedema and cystic lymphatic collections. […] Klippel Trenaunay syndrome has a wide spectrum of clinical findings, and the prognosis is related to the severity of vascular malformations. The malformations progress over time with ongoing overgrowth and worsening venous insufficiency. […] Recurrent deep venous thrombosis leads to the risk of pulmonary embolism, which can be massive and fatal. […] Patients with Klippel-Trenaunay syndrome need to be aware of the progressive nature of this condition. In children who are diagnosed with KTS, parents need to be educated on possible complications and to ensure close follow-up to monitor for limb length discrepancy and timely management.
  • #58 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #59 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #60 Klippel-Trenaunay syndrome (KTS) – Vascular surgery | Northwell Health
    https://www.northwell.edu/vascular-surgery/conditions/klippel-trenaunay-syndrome
    KTS is characterized by three main features: […] Port-wine stain. This reddish-purple birthmark is usually found on the leg, resulting from the swelling of additional tiny blood vessels found in the top layer of skin. […] Varicose veins. These are enlarged, twisted veins under the skin. They may cause some itching, swelling and tiredness in the legs. […] Overgrowth of bones and soft tissue. This begins in infancy and is most commonly present in a patients legs. It may cause pain, achiness, heaviness and itchiness; also one leg may be larger, or longer than the other. […] In some cases, hip dislocation also occurs during birth. […] Complications associated with KTS include: […] A feeling of heaviness, limited movement and limb enlargement may result from the overgrowth of bones and soft tissue. Most often, this causes one leg to be longer than the other, which in turn can lead to difficulty walking or hip and back complications.
  • #61 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #62 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #63 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #64 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #65 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #66 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #67 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #68 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #69 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #70 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #71 Presentation and Management of Klippel-Trenaunay Syndrome: A Review of Available Data
    https://pmc.ncbi.nlm.nih.gov/articles/PMC7282379/
    Klippel-Trenaunay Syndrome (KTS) is a rare and sporadic congenital disorder, characterized by the classical triad of port-wine stains, varicosities along with bone and soft tissue hypertrophy. Symptoms of Klippel-Trenaunay Syndrome include pain, swelling, lymphedema, bleeding, superficial thrombophlebitis, and deep vein thrombosis. […] The common symptoms are pain and lymphedema. There are other, various symptoms of KTS, including superficial thrombophlebitis, deep vein thrombosis, pulmonary embolism, bleeding, hypospadias, oligodactyly, paresthesia, angiosarcoma, ulceration, thrombosis, stasis dermatitis, decalcification of involved bones, poor wound healing, hyperhidrosis, hypertrichosis, and spina bifida. […] Pain is a common feature of KTS, affecting as many as 88% of those affected. Therefore, patients with KTS require pain management frequently. The guiding principles of management are dependent on the cause of pain and, therefore, causative treatment is employed in the treatment of pain in these patients.
  • #72 Klippel-Trenaunay Syndrome | Boston Children’s Hospital
    https://www.childrenshospital.org/conditions/klippel-trenaunay-syndrome
    Klippel-Trenaunay syndrome (KTS) is a rare congenital (present at birth) vascular anomaly that results in your child having a large number of abnormal blood vessels. Doctors can sometimes see evidence of KTS in a prenatal ultrasound, and the capillary malformation (in the form of a „port-wine stain” birthmark) is almost always apparent at the baby’s birth. KTS often has three characteristic signs: Capillary malformation covering one or more limbs (arm or leg), Hypertrophy — or excessive growth — of a limb (usually a leg), Abnormal blood vessels, including veins, capillaries and lymphatic vessels (vessels that drain fluid that leaks from arteries and veins and return that fluid to the bloodstream). KTS affects different kids in different ways. One child may have a mild form of the syndrome with a small capillary malformation and one hand or foot slightly larger than the other. Another child may have a capillary malformation that runs from their chest down their leg, lots of swelling and one limb that is much larger than the other. Symptoms of KTS include: Blood clots, Cellulitis (infections in the skin) — your child may be more prone to infection because they are more likely to bleed easily as a result of the abnormal capillaries near the surface of their skin, Anemia due to blood loss from easy bleeding, Pain and heaviness of the affected limb, often severe, Difference in size between the affected and non-affected limb, Lymphatic abnormalities such as cysts and swelling, Swollen veins. […] KTS is a progressive condition, which means that it will grow as your child grows. That said, many kids — especially those with mild cases of KTS — go on to live normal, healthy lives. Treatment for your child’s symptoms is the most effective way to manage the disease.
  • #73 New York Klippel­-Trenaunay Syndrome Treatment, Symptoms | Los Angeles
    https://www.birthmarkcare.com/vascular-malformations/klippel%C2%AD-trenaunay-syndrome/
    Klippel-Trenaunay syndrome is a rare disorder that is present at birth. The condition can present in a number of ways, including the presence of a port-wine stain, excess bone or soft tissue or varicose veins that affect a single limb. It is also common for Klippel-Trenaunay syndrome to result in the limb being abnormal in size and length. […] Complications from Klippel-Trenaunay syndrome include blood in the urine, frequent skin infections, localized pain, anemia and seizures. The presence of any or all of these symptoms requires medical intervention from a qualified clinician. […] There are potential complications that may arise from Klippel-Trenaunay syndrome. Seeking treatment is advised to relieve the impact of symptoms and reduce any risks associated with the disorder. […] Pain and swelling are also managed through the use of compression stockings. […] Vascular surgery is considered a treatment option when there is the potential for complications arising from Klippel-Trenaunay syndrome.
  • #74 Klippel-Trenaunay Syndrome | Boston Children’s Hospital
    https://www.childrenshospital.org/conditions/klippel-trenaunay-syndrome
    Klippel-Trenaunay syndrome (KTS) is a rare congenital (present at birth) vascular anomaly that results in your child having a large number of abnormal blood vessels. Doctors can sometimes see evidence of KTS in a prenatal ultrasound, and the capillary malformation (in the form of a „port-wine stain” birthmark) is almost always apparent at the baby’s birth. KTS often has three characteristic signs: Capillary malformation covering one or more limbs (arm or leg), Hypertrophy — or excessive growth — of a limb (usually a leg), Abnormal blood vessels, including veins, capillaries and lymphatic vessels (vessels that drain fluid that leaks from arteries and veins and return that fluid to the bloodstream). KTS affects different kids in different ways. One child may have a mild form of the syndrome with a small capillary malformation and one hand or foot slightly larger than the other. Another child may have a capillary malformation that runs from their chest down their leg, lots of swelling and one limb that is much larger than the other. Symptoms of KTS include: Blood clots, Cellulitis (infections in the skin) — your child may be more prone to infection because they are more likely to bleed easily as a result of the abnormal capillaries near the surface of their skin, Anemia due to blood loss from easy bleeding, Pain and heaviness of the affected limb, often severe, Difference in size between the affected and non-affected limb, Lymphatic abnormalities such as cysts and swelling, Swollen veins. […] KTS is a progressive condition, which means that it will grow as your child grows. That said, many kids — especially those with mild cases of KTS — go on to live normal, healthy lives. Treatment for your child’s symptoms is the most effective way to manage the disease.
  • #75 Klippel-Trenaunay-Weber Syndrome – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK558989/
    Venous malformations are seen in 70 to 100% of patients and consist of varicosities in the superficial and deep venous systems, persistent embryonic veins, and aplasia/hypoplasia with valvular incompetence. […] Lymphatic malformations are seen in 15 to 50% of cases and consist of lymphedema and cystic lymphatic collections. […] Klippel Trenaunay syndrome has a wide spectrum of clinical findings, and the prognosis is related to the severity of vascular malformations. The malformations progress over time with ongoing overgrowth and worsening venous insufficiency. […] Recurrent deep venous thrombosis leads to the risk of pulmonary embolism, which can be massive and fatal. […] Patients with Klippel-Trenaunay syndrome need to be aware of the progressive nature of this condition. In children who are diagnosed with KTS, parents need to be educated on possible complications and to ensure close follow-up to monitor for limb length discrepancy and timely management.
  • #76 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    Limb hypertrophy affects the lower limb in most cases (up to 95%), but hypertrophy can also involve the trunk, and head and neck. Limb enlargement is disproportionate, with the girth of the limb enlarging more than length. Increased girth is due to hypertrophy of the skin and muscles whereas increased limb length is due to bone overgrowth. The average difference in limb length is around 2 cm. The length discrepancy can cause uneven walking, unstable gait, or pain. The child might appear to have scoliosis. […] The possible complications of Klippel-Trnaunay syndrome include DVT due to malformations of deep veins, pulmonary embolism, cellulitis, lymphoedema, and internal bleeding. […] The diagnosis of KlippelTrnaunay syndrome is made clinically when two of the three classic signs of port-wine stain, varicose veins, and limb hypertrophy are present. While a diagnosis of Klippel-Trnaunay syndrome can be suspected in a newborn when a port-wine stain is present, the confirmation comes later when other symptoms become more apparent.
  • #77 Klippel-Trenaunay syndrome | Great Ormond Street Hospital
    https://www.gosh.nhs.uk/conditions-and-treatments/conditions-we-treat/klippel-trenaunay-syndrome/
    A syndrome is a collection of symptoms that often appear together. The symptoms associated with Klippel-Trenaunay syndrome are port wine stains, varicose veins and hypertrophy (extra growth) of one limb. […] Klippel-Trenaunay syndrome consists of three symptoms often seen together: port wine stains, varicose veins and limb hypertrophy. […] The port wine stain is a flat, red or purple mark on the skin that is often the only noticeable symptom of Klippel-Trenaunay syndrome at birth. […] Varicose veins are another feature of Klippel-Trenaunay syndrome, and are much larger and cover a wider area than normal varicose veins. […] Limb hypertrophy is the third feature of Klippel-Trenaunay syndrome, although it is not always noticeable at birth and during early childhood. […] The affected leg is bigger widthways because the skin and muscles grow more and become thicker.
  • #78 Klippel-Trenaunay syndrome | Great Ormond Street Hospital
    https://www.gosh.nhs.uk/conditions-and-treatments/conditions-we-treat/klippel-trenaunay-syndrome/
    A syndrome is a collection of symptoms that often appear together. The symptoms associated with Klippel-Trenaunay syndrome are port wine stains, varicose veins and hypertrophy (extra growth) of one limb. […] Klippel-Trenaunay syndrome consists of three symptoms often seen together: port wine stains, varicose veins and limb hypertrophy. […] The port wine stain is a flat, red or purple mark on the skin that is often the only noticeable symptom of Klippel-Trenaunay syndrome at birth. […] Varicose veins are another feature of Klippel-Trenaunay syndrome, and are much larger and cover a wider area than normal varicose veins. […] Limb hypertrophy is the third feature of Klippel-Trenaunay syndrome, although it is not always noticeable at birth and during early childhood. […] The affected leg is bigger widthways because the skin and muscles grow more and become thicker.
  • #79 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    Limb hypertrophy affects the lower limb in most cases (up to 95%), but hypertrophy can also involve the trunk, and head and neck. Limb enlargement is disproportionate, with the girth of the limb enlarging more than length. Increased girth is due to hypertrophy of the skin and muscles whereas increased limb length is due to bone overgrowth. The average difference in limb length is around 2 cm. The length discrepancy can cause uneven walking, unstable gait, or pain. The child might appear to have scoliosis. […] The possible complications of Klippel-Trnaunay syndrome include DVT due to malformations of deep veins, pulmonary embolism, cellulitis, lymphoedema, and internal bleeding. […] The diagnosis of KlippelTrnaunay syndrome is made clinically when two of the three classic signs of port-wine stain, varicose veins, and limb hypertrophy are present. While a diagnosis of Klippel-Trnaunay syndrome can be suspected in a newborn when a port-wine stain is present, the confirmation comes later when other symptoms become more apparent.
  • #80 FloridaHealthFinder | Klippel-Trenaunay syndrome | Health Encyclopedia | FloridaHealthFinder
    https://quality.healthfinder.fl.gov/health-encyclopedia/HIE/1/000150
    Klippel-Trenaunay syndrome (KTS) is a rare condition that is typically present at birth. The syndrome often involves port wine stains, excess growth of bones and soft tissue, and varicose veins. […] Symptoms of KTS include: Many port wine stains or other blood vessel problems, including dark spots on the skin. Varicose veins (may be seen in early infancy, but are more likely to be seen later in childhood or adolescence). Unstable gait due to limb-length difference (involved limb is longer). Bone, vein, or nerve pain. […] Other possible symptoms: Bleeding from the rectum. Blood in the urine. […] Most people with KTS do well, although the condition may affect their appearance.
  • #81 Klippel-Trenaunay syndrome | Great Ormond Street Hospital
    https://www.gosh.nhs.uk/conditions-and-treatments/conditions-we-treat/klippel-trenaunay-syndrome/
    A syndrome is a collection of symptoms that often appear together. The symptoms associated with Klippel-Trenaunay syndrome are port wine stains, varicose veins and hypertrophy (extra growth) of one limb. […] Klippel-Trenaunay syndrome consists of three symptoms often seen together: port wine stains, varicose veins and limb hypertrophy. […] The port wine stain is a flat, red or purple mark on the skin that is often the only noticeable symptom of Klippel-Trenaunay syndrome at birth. […] Varicose veins are another feature of Klippel-Trenaunay syndrome, and are much larger and cover a wider area than normal varicose veins. […] Limb hypertrophy is the third feature of Klippel-Trenaunay syndrome, although it is not always noticeable at birth and during early childhood. […] The affected leg is bigger widthways because the skin and muscles grow more and become thicker.
  • #82 Klippel-Trenaunay syndrome | Great Ormond Street Hospital
    https://www.gosh.nhs.uk/conditions-and-treatments/conditions-we-treat/klippel-trenaunay-syndrome/
    The limb hypertrophy can cause an uneven walking style (gait) but this can be improved. […] Other symptoms have been reported in children with Klippel-Trenaunay syndrome, affecting the skin, skeleton, blood vessels and lymphatic system, but these are less common. […] Klippel-Trenaunay syndrome may be suspected in children who have a port wine stain covering an arm or leg, but the diagnosis may not be confirmed until the child is walking and the varicose veins and limb hypertrophy are more obvious. […] Klippel-Trenaunay syndrome itself cannot be treated but the symptoms associated with it can be improved to a great extent. […] The varicose veins in the affected leg may become painful, and are often the most troublesome part of Klippel-Trenaunay syndrome. […] Limb hypertrophy can be treated in various ways, depending on the difference in size between the affected and unaffected leg. […] As the severity of symptoms of Klippel-Trenaunay syndrome varies from child to child, a multidisciplinary team often provides the best care. […] Klippel-Trenaunay syndrome is not a life-threatening condition and should not interfere with a child’s day-to-day activities to any great degree.
  • #83 What is Klippel-Trenaunay syndrome
    https://sturge-weber.org/new-to-swf/understanding-kt.html
    Most patients report pain in the affected limb. Many women report an increase in symptoms during times of hormonal change like PMS, puberty, menopause, perimenopause, and pregnancy. These symptoms may include increased swelling, tingling sensation, change in color and heaviness in the affected limb, fatigue, headache, heart palpitations, exercise intolerance, and an increase in clotting times. […] Pain is a major concern for most patients. Patients with KT may rarely require amputation when the limb is grossly enlarged. Amputation of toes and debulking (making the limb smaller surgically) may be necessary. Internal organ involvement should be ruled out in any patient presenting with KT or Parkes-Weber Syndrome.
  • #84 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    People who have KTS may have the following features, which can range from mild to more extensive: […] Port-wine stain. This pink to reddish-purple birthmark is caused by extra tiny blood vessels (capillaries) in the top layer of skin. The birthmark often covers part of one leg but can involve any portion of the skin. It may get darker or lighter with age. […] Vein malformations. These include swollen, twisted veins (varicose veins), usually on the surface of the legs. Deeper malformed veins in the arms, legs, abdomen and pelvis also can occur. There may be spongy tissue filled with small veins in or under the skin. Malformed veins may become more prominent with age. […] Overgrowth of bones and soft tissue. This begins in infancy and may be limited to one leg, but it can occur in an arm or, rarely, in the trunk or face. This overgrowth of bone and tissue creates a larger and longer extremity. Rarely, there may be fusion of fingers or toes or extra fingers or toes.
  • #85 What is Klippel-Trenaunay syndrome
    https://sturge-weber.org/new-to-swf/understanding-kt.html
    Most patients report pain in the affected limb. Many women report an increase in symptoms during times of hormonal change like PMS, puberty, menopause, perimenopause, and pregnancy. These symptoms may include increased swelling, tingling sensation, change in color and heaviness in the affected limb, fatigue, headache, heart palpitations, exercise intolerance, and an increase in clotting times. […] Pain is a major concern for most patients. Patients with KT may rarely require amputation when the limb is grossly enlarged. Amputation of toes and debulking (making the limb smaller surgically) may be necessary. Internal organ involvement should be ruled out in any patient presenting with KT or Parkes-Weber Syndrome.
  • #86 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #87 Klippel-Trenaunay Syndrome (KTS): Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/17152-klippel-trenaunay-syndrome-kts
    Soft tissue and bone overgrowth. Your limbs may grow larger than whats typical, starting in infancy. Overgrowth often affects only one limb, usually your leg. One leg might grow longer than the other. This can limit your range of motion. […] Lymphatic malformation (LM). Some people with KTS also have extra or unusual lymph vessels, which carry lymph. In KTS, the extra lymphatic vessels often dont work as they should. They may leak lymphatic fluid, cause foot swelling or cause issues in your pelvis, bladder or lower intestines. […] Yes, it can be. Varicose veins may itch or hurt. Blood flow issues can cause swelling and pain in your lower limbs. Overgrowth of a leg can cause pain or a heavy feeling. […] The outlook for KTS can vary. It depends on how severe your vascular malformations are. They tend to get worse over time. You need quick treatment for GI bleeding or blood clots in your deep veins or lungs. Blood clots or severe blood loss can be fatal. […] Ongoing treatment with your healthcare provider can lower your risk of complications.
  • #88 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #89 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    Limb hypertrophy affects the lower limb in most cases (up to 95%), but hypertrophy can also involve the trunk, and head and neck. Limb enlargement is disproportionate, with the girth of the limb enlarging more than length. Increased girth is due to hypertrophy of the skin and muscles whereas increased limb length is due to bone overgrowth. The average difference in limb length is around 2 cm. The length discrepancy can cause uneven walking, unstable gait, or pain. The child might appear to have scoliosis. […] The possible complications of Klippel-Trnaunay syndrome include DVT due to malformations of deep veins, pulmonary embolism, cellulitis, lymphoedema, and internal bleeding. […] The diagnosis of KlippelTrnaunay syndrome is made clinically when two of the three classic signs of port-wine stain, varicose veins, and limb hypertrophy are present. While a diagnosis of Klippel-Trnaunay syndrome can be suspected in a newborn when a port-wine stain is present, the confirmation comes later when other symptoms become more apparent.
  • #90 Klippel-Trenaunay Syndrome – K-T Support Group
    https://k-t.org/about-kt/what-is-kts
    Klippel-Trenaunay (K-T) Syndrome is characterized by a localized or diffuse capillary malformation that overlies a venous malformation and/or lymphatic malformation with associated soft tissue and bone overgrowth (hypertrophy). The capillary malformation is typically substantial, varicose veins are often quite numerous, and bone and soft tissue hypertrophy are variable. The affected limb is either larger or smaller than the unaffected limb. Hypertrophy occurs most commonly in the lower limbs but may affect the arms, the face, the head, or internal organs. Additionally, a wide range of other skeletal and skin abnormalities sometimes coexists. […] Complications may include bleeding, cellulitis, venous thrombosis, pulmonary embolism, lymphatic „blebs”, skin breakdown and ulceration, vertebral scoliosis, gait abnormalities, joint damage, and chronic pain. Difficulty finding properly fitted clothing and/or shoes is common. Associated abnormalities such as macrodactyly, lymphedema, or involvement of the abdominal and pelvic organs may also occur.
  • #91 Klippel-Trenaunay syndrome // Middlesex Health
    https://middlesexhealth.org/learning-center/diseases-and-conditions/klippel-trenaunay-syndrome
    Lymphatic system malformations. The lymphatic system part of the immune system that protects against infection and disease and transports lymphatic fluid can be malformed. Extra lymphatic vessels can be present that don’t work properly and can lead to fluid leakage into the tissues and swelling. […] Other conditions. KTS can also include cataracts, glaucoma, hip dislocation at birth, purple-red skin coloring when cold and blood-clotting problems. […] KTS is usually identified at birth. It’s important to get a prompt, accurate diagnosis and appropriate care to treat symptoms and prevent complications. […] Complications of KTS can result from atypical development of blood vessels, soft tissues, bones and the lymphatic system. These can include: […] Overgrowth of bones and soft tissue. Overgrowth of bone and tissue can cause pain, a feeling of heaviness, limb enlargement and problems with movement. Overgrowth that causes one leg to be longer than the other can result in problems with walking and may lead to hip and back problems. […] Chronic pain. Pain can be a common problem that results from complications such as infections, swelling, bone involvement or vein problems.
  • #92 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    Patients with KlippelTrnaunay syndrome tend to do very well. While it is not a life-threatening condition and most patients end up having normal lives, ongoing care is required. This is best provided by a multidisciplinary team of dermatologists, vascular and orthopaedic surgeons, and general surgeons. Some people may require counselling to adjust to the cosmetic aspects of the disease.
  • #93 Klippel-Trenaunay syndrome | Children’s Health Queensland
    https://www.childrens.health.qld.gov.au/health-a-to-z/klippel-trenaunay-syndrome
    Children often feel dull or achy pain in their affected limb as the day progresses. Pain is most commonly due to varicose veins. […] As the limb is used during the day, blood and excess fluid may pool in these veins causing pain and discomfort for your child. This pain may reduce your childs ability and desire to participate in activities, so be sure to monitor the level of pain to discuss with your OT.
  • #94 What is Klippel-Trenaunay syndrome
    https://sturge-weber.org/new-to-swf/understanding-kt.html
    Most patients report pain in the affected limb. Many women report an increase in symptoms during times of hormonal change like PMS, puberty, menopause, perimenopause, and pregnancy. These symptoms may include increased swelling, tingling sensation, change in color and heaviness in the affected limb, fatigue, headache, heart palpitations, exercise intolerance, and an increase in clotting times. […] Pain is a major concern for most patients. Patients with KT may rarely require amputation when the limb is grossly enlarged. Amputation of toes and debulking (making the limb smaller surgically) may be necessary. Internal organ involvement should be ruled out in any patient presenting with KT or Parkes-Weber Syndrome.
  • #95 Klippel-Trenaunay syndrome | Great Ormond Street Hospital
    https://www.gosh.nhs.uk/conditions-and-treatments/conditions-we-treat/klippel-trenaunay-syndrome/
    The limb hypertrophy can cause an uneven walking style (gait) but this can be improved. […] Other symptoms have been reported in children with Klippel-Trenaunay syndrome, affecting the skin, skeleton, blood vessels and lymphatic system, but these are less common. […] Klippel-Trenaunay syndrome may be suspected in children who have a port wine stain covering an arm or leg, but the diagnosis may not be confirmed until the child is walking and the varicose veins and limb hypertrophy are more obvious. […] Klippel-Trenaunay syndrome itself cannot be treated but the symptoms associated with it can be improved to a great extent. […] The varicose veins in the affected leg may become painful, and are often the most troublesome part of Klippel-Trenaunay syndrome. […] Limb hypertrophy can be treated in various ways, depending on the difference in size between the affected and unaffected leg. […] As the severity of symptoms of Klippel-Trenaunay syndrome varies from child to child, a multidisciplinary team often provides the best care. […] Klippel-Trenaunay syndrome is not a life-threatening condition and should not interfere with a child’s day-to-day activities to any great degree.
  • #96 Klippel-Trenaunay-Weber Syndrome – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK558989/
    Venous malformations are seen in 70 to 100% of patients and consist of varicosities in the superficial and deep venous systems, persistent embryonic veins, and aplasia/hypoplasia with valvular incompetence. […] Lymphatic malformations are seen in 15 to 50% of cases and consist of lymphedema and cystic lymphatic collections. […] Klippel Trenaunay syndrome has a wide spectrum of clinical findings, and the prognosis is related to the severity of vascular malformations. The malformations progress over time with ongoing overgrowth and worsening venous insufficiency. […] Recurrent deep venous thrombosis leads to the risk of pulmonary embolism, which can be massive and fatal. […] Patients with Klippel-Trenaunay syndrome need to be aware of the progressive nature of this condition. In children who are diagnosed with KTS, parents need to be educated on possible complications and to ensure close follow-up to monitor for limb length discrepancy and timely management.
  • #97 Klippel-Trenaunay Syndrome – K-T Support Group
    https://k-t.org/about-kt/what-is-kts
    There is no known cure for K-T Syndrome. […] Conservative treatment of the symptoms at a multidisciplinary clinic is recommended. Compression garments and pumps help manage the effects of lymphedema and can assist in protecting the limb from trauma. […] Both sirolimus and alpelisib can reduce symptoms. […] Laser therapy may reduce or eliminate port-wine stains and help control lymphatic blebs. After trying other management techniques, surgical procedures may be necessary to debulk excessive tissue, to excise ectatic veins. Epiphyseal arrest can help correct uneven growth in limbs. Typically, an orthopedic surgeon will follow your child’s growth and select a time for surgery, usually prior to the end of puberty. […] Computed Axial Tomography (CAT) and Magnetic Resonance Imaging (MRI) scans, and color Doppler studies are useful in determining the scope of the syndrome and how best to manage it.
  • #98 Klippel-Trenaunay-Weber Syndrome – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK558989/
    Venous malformations are seen in 70 to 100% of patients and consist of varicosities in the superficial and deep venous systems, persistent embryonic veins, and aplasia/hypoplasia with valvular incompetence. […] Lymphatic malformations are seen in 15 to 50% of cases and consist of lymphedema and cystic lymphatic collections. […] Klippel Trenaunay syndrome has a wide spectrum of clinical findings, and the prognosis is related to the severity of vascular malformations. The malformations progress over time with ongoing overgrowth and worsening venous insufficiency. […] Recurrent deep venous thrombosis leads to the risk of pulmonary embolism, which can be massive and fatal. […] Patients with Klippel-Trenaunay syndrome need to be aware of the progressive nature of this condition. In children who are diagnosed with KTS, parents need to be educated on possible complications and to ensure close follow-up to monitor for limb length discrepancy and timely management.
  • #99 Klippel-Trénaunay syndrome: Symptoms and treatment
    https://www.medicalnewstoday.com/articles/klippel-trenaunay-syndrome-symptoms-and-treatment
    The veins may swell and twist close to the skin’s surface and cause pain. This is known as varicose veins and occurs in 72% of KTS cases. […] Other possible symptoms of KTS may include: lymphatic problems, such as swelling or cysts; cellulitis, or skin infections; blood clots; anemia; internal bleeding. […] KTS is often a progressive disorder and the prognosis of an individual will depend on the severity of the symptoms. […] While some symptoms of the condition may be severe, a person can typically manage them with regular doctor appointments and following their treatment plan. Evidence notes that many individuals live well while managing the symptoms of the disorder.
  • #100 FloridaHealthFinder | Klippel-Trenaunay syndrome | Health Encyclopedia | FloridaHealthFinder
    https://quality.healthfinder.fl.gov/health-encyclopedia/HIE/1/000150
    Klippel-Trenaunay syndrome (KTS) is a rare condition that is typically present at birth. The syndrome often involves port wine stains, excess growth of bones and soft tissue, and varicose veins. […] Symptoms of KTS include: Many port wine stains or other blood vessel problems, including dark spots on the skin. Varicose veins (may be seen in early infancy, but are more likely to be seen later in childhood or adolescence). Unstable gait due to limb-length difference (involved limb is longer). Bone, vein, or nerve pain. […] Other possible symptoms: Bleeding from the rectum. Blood in the urine. […] Most people with KTS do well, although the condition may affect their appearance.
  • #101 Klippel-Trenaunay Syndrome | Boston Children’s Hospital
    https://www.childrenshospital.org/conditions/klippel-trenaunay-syndrome
    Klippel-Trenaunay syndrome (KTS) is a rare congenital (present at birth) vascular anomaly that results in your child having a large number of abnormal blood vessels. Doctors can sometimes see evidence of KTS in a prenatal ultrasound, and the capillary malformation (in the form of a „port-wine stain” birthmark) is almost always apparent at the baby’s birth. KTS often has three characteristic signs: Capillary malformation covering one or more limbs (arm or leg), Hypertrophy — or excessive growth — of a limb (usually a leg), Abnormal blood vessels, including veins, capillaries and lymphatic vessels (vessels that drain fluid that leaks from arteries and veins and return that fluid to the bloodstream). KTS affects different kids in different ways. One child may have a mild form of the syndrome with a small capillary malformation and one hand or foot slightly larger than the other. Another child may have a capillary malformation that runs from their chest down their leg, lots of swelling and one limb that is much larger than the other. Symptoms of KTS include: Blood clots, Cellulitis (infections in the skin) — your child may be more prone to infection because they are more likely to bleed easily as a result of the abnormal capillaries near the surface of their skin, Anemia due to blood loss from easy bleeding, Pain and heaviness of the affected limb, often severe, Difference in size between the affected and non-affected limb, Lymphatic abnormalities such as cysts and swelling, Swollen veins. […] KTS is a progressive condition, which means that it will grow as your child grows. That said, many kids — especially those with mild cases of KTS — go on to live normal, healthy lives. Treatment for your child’s symptoms is the most effective way to manage the disease.
  • #102 Klippel–Trénaunay syndrome
    https://dermnetnz.org/topics/klippel-trenaunay-syndrome
    Patients with KlippelTrnaunay syndrome tend to do very well. While it is not a life-threatening condition and most patients end up having normal lives, ongoing care is required. This is best provided by a multidisciplinary team of dermatologists, vascular and orthopaedic surgeons, and general surgeons. Some people may require counselling to adjust to the cosmetic aspects of the disease.
  • #103 Klippel-Trenaunay-Weber Syndrome – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK558989/
    Venous malformations are seen in 70 to 100% of patients and consist of varicosities in the superficial and deep venous systems, persistent embryonic veins, and aplasia/hypoplasia with valvular incompetence. […] Lymphatic malformations are seen in 15 to 50% of cases and consist of lymphedema and cystic lymphatic collections. […] Klippel Trenaunay syndrome has a wide spectrum of clinical findings, and the prognosis is related to the severity of vascular malformations. The malformations progress over time with ongoing overgrowth and worsening venous insufficiency. […] Recurrent deep venous thrombosis leads to the risk of pulmonary embolism, which can be massive and fatal. […] Patients with Klippel-Trenaunay syndrome need to be aware of the progressive nature of this condition. In children who are diagnosed with KTS, parents need to be educated on possible complications and to ensure close follow-up to monitor for limb length discrepancy and timely management.
  • #104 Klippel-Trenaunay Syndrome (KTS): Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/17152-klippel-trenaunay-syndrome-kts
    Soft tissue and bone overgrowth. Your limbs may grow larger than whats typical, starting in infancy. Overgrowth often affects only one limb, usually your leg. One leg might grow longer than the other. This can limit your range of motion. […] Lymphatic malformation (LM). Some people with KTS also have extra or unusual lymph vessels, which carry lymph. In KTS, the extra lymphatic vessels often dont work as they should. They may leak lymphatic fluid, cause foot swelling or cause issues in your pelvis, bladder or lower intestines. […] Yes, it can be. Varicose veins may itch or hurt. Blood flow issues can cause swelling and pain in your lower limbs. Overgrowth of a leg can cause pain or a heavy feeling. […] The outlook for KTS can vary. It depends on how severe your vascular malformations are. They tend to get worse over time. You need quick treatment for GI bleeding or blood clots in your deep veins or lungs. Blood clots or severe blood loss can be fatal. […] Ongoing treatment with your healthcare provider can lower your risk of complications.
  • #105 Klippel-Trenaunay Syndrome (KTS): Symptoms & Treatment
    https://my.clevelandclinic.org/health/diseases/17152-klippel-trenaunay-syndrome-kts
    Soft tissue and bone overgrowth. Your limbs may grow larger than whats typical, starting in infancy. Overgrowth often affects only one limb, usually your leg. One leg might grow longer than the other. This can limit your range of motion. […] Lymphatic malformation (LM). Some people with KTS also have extra or unusual lymph vessels, which carry lymph. In KTS, the extra lymphatic vessels often dont work as they should. They may leak lymphatic fluid, cause foot swelling or cause issues in your pelvis, bladder or lower intestines. […] Yes, it can be. Varicose veins may itch or hurt. Blood flow issues can cause swelling and pain in your lower limbs. Overgrowth of a leg can cause pain or a heavy feeling. […] The outlook for KTS can vary. It depends on how severe your vascular malformations are. They tend to get worse over time. You need quick treatment for GI bleeding or blood clots in your deep veins or lungs. Blood clots or severe blood loss can be fatal. […] Ongoing treatment with your healthcare provider can lower your risk of complications.
  • #106 Klippel-Trénaunay Syndrome | Doctor
    https://patient.info/doctor/klippel-trenaunay-syndrome
    The condition may affect more than one limb, an internal organ or the head and neck. Visceral involvement is thought to be more common than previously supposed, occurring in perhaps 20% of patients. […] Limb lengthening may present initially as gait disturbance. […] Limb hypertrophy is often greater distally. The digits may be affected, with macrodactyly, syndactyly, polydactyly or oligodactyly. […] An increase in limb girth may be the main feature if soft tissues rather than bones are predominantly affected. […] Rarely, the affected limb may show atrophy rather than hypertrophy. […] Life expectancy is largely normal, depending on the severity of the malformation and thus the likelihood of complications.