Rak piersi zapalny – Etiologia i przyczyny

Rak piersi zapalny
Etiologia i przyczyny

Zapalny rak piersi (IBC) to rzadki, ale wysoce agresywny nowotwór stanowiący 1-5% przypadków raka piersi w USA, odpowiedzialny za około 10% zgonów z powodu raka piersi. Patogeneza IBC wiąże się z blokadą naczyń limfatycznych skóry piersi przez komórki nowotworowe, co prowadzi do charakterystycznych objawów zapalnych, takich jak zaczerwienienie, obrzęk i skórka pomarańczowa. IBC cechuje się wczesnym i agresywnym rozsiewem hematogennym, z częstszymi przerzutami do narządów miąższowych oraz dodatnimi węzłami chłonnymi w chwili diagnozy. Molekularnie IBC wykazuje nadekspresję miRNA (miR-421, miR-486, miR-503, miR-720, miR-1303) oraz aktywację szlaków zapalnych NF-κB, COX-2 i JAK/STAT, co sprzyja progresji, oporności i migracji komórek nowotworowych. Występuje częściej u kobiet młodszych (średni wiek 52 lata) i u Afroamerykanek, a także u osób z wysokim BMI, co wskazuje na rolę czynników hormonalnych i metabolicznych w etiologii IBC.

Etiologia zapalnego raka piersi

Zapalny rak piersi (IBC – inflammatory breast cancer) jest rzadką, ale niezwykle agresywną formą raka piersi, stanowiącą około 1-5% wszystkich przypadków raka piersi diagnozowanych w Stanach Zjednoczonych. Pomimo relatywnie niskiej częstości występowania, ten typ nowotworu odpowiada za około 10% zgonów związanych z rakiem piersi ze względu na jego agresywny charakter i szybkie tempo progresji¹².

Mechanizm rozwoju zapalnego raka piersi

Zapalny rak piersi rozwija się, gdy komórki nowotworowe blokują naczynia limfatyczne w skórze piersi. Proces ten prowadzi do charakterystycznego wyglądu piersi – z zaczerwienieniem, obrzękiem i ciepłem, co może przypominać stan zapalny³⁴. Wbrew nazwie, stan zapalny nie jest przyczyną tego typu raka – termin „zapalny” odnosi się jedynie do wyglądu piersi, który przypomina stan zapalny⁵.

Większość przypadków zapalnego raka piersi rozwija się z komórek wyściełających przewody mleczne piersi (inwazyjny rak przewodowy) i szybko rozprzestrzenia się poza te przewody⁶⁷. Komórki nowotworowe odrywają się od miejsca, w którym powstały, i przemieszczają do naczyń limfatycznych w skórze piersi. Tam namnażają się, blokując naczynia, co prowadzi do zmian w kolorze skóry, obrzęku i charakterystycznego wyglądu skórki pomarańczowej⁸⁹.

Ze względu na specyficzną biologię, IBC od początku traktowany jest jako choroba układowa, a nie miejscowo zaawansowany rak. Nowotwór ten ma tendencję do wczesnego i agresywnego rozprzestrzeniania się drogą krwionośną, co prowadzi do większej częstości przerzutów do narządów miąższowych w porównaniu z innymi formami raka piersi¹⁰.

Komórkowe i molekularne podłoże choroby

Zapalny rak piersi powstaje, gdy komórki w piersi rozwijają zmiany w swoim DNA. W zdrowych komórkach DNA zawiera instrukcje nakazujące komórce wzrost i namnażanie się w określonym tempie oraz obumieranie w określonym czasie. W komórkach nowotworowych zmiany w DNA dają inne instrukcje, nakazujące komórkom rakowym szybkie tworzenie większej liczby komórek. Komórki rakowe mogą pozostawać przy życiu, gdy zdrowe komórki obumierałyby, co prowadzi do nadmiaru komórek¹¹.

Badania porównujące profile ekspresji mikroRNA (miRNA) w tkankach raka niezapalnego, zapalnego i normalnych tkankach piersi wykazały, że pacjenci z IBC charakteryzują się nadekspresją pięciu miRNA: miR-421, miR-486, miR-503, miR-720 i miR-1303¹².

Zapalny rak piersi charakteryzuje się również specyficznymi cechami molekularnymi, które napędzają progresję, oporność i migrację komórek rakowych, co przyczynia się do wysokiego wskaźnika rozprzestrzeniania się i nawrotów¹³. Badania wykazały, że wiele głównych szlaków sygnalizacji zapalnej jest konstytutywnie aktywnych w IBC. Wśród nich systemy sygnalizacyjne NF-κB, COX-2 i JAK/STAT wydają się odgrywać główną rolę w patogenezie IBC¹⁴.

Cząsteczki zapalne, takie jak interleukina-6, czynnik martwicy nowotworów alfa (TNF-α) i interferon gamma, przyczyniają się do transformacji nowotworowej w badaniach przedklinicznych IBC, podczas gdy transformujący czynnik wzrostu-β, interleukiny 8 i 1 oraz TNF-α odgrywają rolę w proliferacji, przeżyciu, przejściu nabłonkowo-mezenchymalnym, inwazji i przerzutach¹⁵.

Czynniki ryzyka zapalnego raka piersi

Dokładne przyczyny rozwoju zapalnego raka piersi pozostają nieznane, jednak badacze zidentyfikowali szereg czynników ryzyka, które mogą zwiększać prawdopodobieństwo wystąpienia tego typu nowotworu.

Czynniki demograficzne i etniczne

Zapalny rak piersi ma tendencję do występowania u młodszych kobiet w porównaniu z innymi typami raka piersi. Średni wiek w momencie diagnozy dla IBC wynosi 52 lata, w porównaniu do 57 lat dla bardziej powszechnych typów raka piersi¹⁶. IBC występuje częściej u kobiet poniżej 40. roku życia¹⁷¹⁸.

Badania wykazały również wyraźne różnice etniczne w częstości występowania zapalnego raka piersi. Kobiety pochodzenia afroamerykańskiego mają wyższe ryzyko zachorowania na IBC w porównaniu z kobietami białymi¹⁹²⁰. Sytuacja ta może być częściowo związana z nierównościami rasowymi i społeczno-ekonomicznymi w systemie opieki zdrowotnej²¹.

Ponadto wyższy odsetek przypadków IBC zaobserwowano w Północnej Afryce, co sugeruje możliwe geograficzne zróżnicowanie czynników ryzyka²².

Otyłość i nadwaga

Wysokie BMI jest niezależnym czynnikiem ryzyka zapalnego raka piersi²³. Nadwaga i otyłość wiążą się ze zwiększonym ryzykiem IBC niezależnie od wewnętrznego środowiska hormonalnego czy statusu receptora estrogenowego (ER) guzów²⁴.

Badania wykazały jednoznacznie, że otyłość jest silnym czynnikiem ryzyka zapalnego raka piersi, z ilorazami szans znacznie wyższymi niż w przypadku innych typów raka piersi²⁵. Jest to istotne odkrycie, ponieważ otyłość stanowi modyfikowalny czynnik ryzyka.

Mechanizm, przez który otyłość przyczynia się do rozwoju IBC, może być związany z produkcją estrogenów przez tkankę tłuszczową. U osób z nadwagą lub otyłością tkanki tłuszczowe wytwarzają większe ilości estrogenów, co może zwiększać ryzyko rozwoju raka²⁶.

Czynniki genetyczne i dziedziczne

W przeciwieństwie do innych typów raka piersi, dziedziczne mutacje genetyczne i historia rodzinna nie wykazują tak silnego związku z zapalnym rakiem piersi²⁷²⁸. Badania sugerują, że historia rodzinna może odgrywać mniejszą rolę w IBC niż w innych typach raka piersi²⁹.

Choć nie zidentyfikowano mutacji genetycznych specyficznych dla IBC³⁰³¹, u niektórych pacjentów z IBC wykryto warianty genetyczne, które mogą mieć wpływ na decyzje dotyczące leczenia³².

Podobnie jak w przypadku innych typów raka piersi, mutacje w genach BRCA1 i BRCA2 mogą zwiększać ryzyko rozwoju zapalnego raka piersi³³³⁴, jednak nie są one specyficzne dla IBC.

Czynniki hormonalne i reprodukcyjne

Dystrybucja wieku i związek z czasem karmienia piersią sugerują udział hormonów w powstawaniu IBC³⁵. Badania wykazały, że młodszy wiek podczas pierwszej ciąży może zwiększać ryzyko zachorowania na IBC³⁶³⁷.

Dłuższe karmienie piersią (przekraczające 24 miesiące) zostało powiązane ze zwiększonym ryzykiem diagnozy IBC³⁸, choć inne badania sugerują, że karmienie piersią może zmniejszać to ryzyko³⁹.

Czynniki takie jak wczesne rozpoczęcie miesiączkowania, późne rozpoczęcie menopauzy i hormonalna terapia zastępcza mogą zwiększać ryzyko rozwoju IBC⁴⁰. Jednakże związek między hormonalną terapią zastępczą a IBC nie jest jednoznaczny⁴¹.

Wcześniejsza ekspozycja na promieniowanie

Wcześniejsza radioterapia okolicy klatki piersiowej może zwiększać ryzyko rozwoju zapalnego raka piersi w późniejszym życiu⁴². Osoby, które otrzymały radioterapię klatki piersiowej w dzieciństwie lub wczesnej dorosłości w celu leczenia innego nowotworu, są bardziej narażone na rozwój raka piersi⁴³.

Styl życia i czynniki środowiskowe

Badania sugerują, że stosowanie doustnych środków antykoncepcyjnych i regularne spożywanie alkoholu mogą być związane z zapalnym rakiem piersi⁴⁴⁴⁵. Te potencjalne czynniki ryzyka są warte dalszych badań ze względu na ich modyfikowalny charakter.

Inne czynniki stylu życia, takie jak dieta uboga w owoce i warzywa oraz brak aktywności fizycznej, mogą również przyczyniać się do zwiększonego ryzyka IBC, podobnie jak w przypadku innych typów raka piersi⁴⁶.

Rola infekcji wirusowych i stanów zapalnych

Istnieją dowody sugerujące, że infekcje wirusowe i przewlekłe stany zapalne mogą odgrywać rolę w etiologii zapalnego raka piersi, choć ten obszar wymaga dalszych badań.

Potencjalna rola wirusów

Badania wskazują, że infekcje wirusowe mogą uczestniczyć w etiologii zapalnego raka piersi⁴⁷. Pogo i współpracownicy wykryli HMTV (wirus związany z MMTV) w 71% przypadków IBC w porównaniu do 40% przypadków nie-IBC u pacjentów amerykańskich⁴⁸.

Unikalny fenotyp IBC wykazuje właściwości związane z infekcją HCMV (ludzkiego cytomegalowirusa), w tym wydzielanie cytokin i proteaz, które indukują migrację komórkową, angiogenezę i aktywację szlaku sygnałowego NF-κB, specyficznego szlaku indukowanego przez infekcję HCMV⁴⁹.

W badaniach wykryto DNA HCMV w tkankach nowotworowych IBC, ale nie w sąsiadujących tkankach nienowotworowych. Wyniki te były statystycznie istotne w porównaniu z grupą pacjentów z rakiem piersi niezapalnym, co sugeruje, że infekcja HCMV może być związana z etiologią i progresją IBC⁵⁰.

Przewlekłe stany zapalne

Istnieją dowody sugerujące, że przewlekłe stany zapalne mogą przyczyniać się do rozwoju zapalnego raka piersi⁵¹. Przewlekły stan zapalny może powodować zmiany w komórkach tkanki piersiowej, zwiększając ryzyko rozwoju nowotworu.

Rola procesów zapalnych w rozwoju IBC nie jest w pełni poznana⁵². Niektóre badania sugerują, że IBC może być odrębną jednostką epidemiologiczną, a nie tylko kliniczno-patologiczną⁵³.

Cechy biologiczne i molekularne zapalnego raka piersi

Zapalny rak piersi posiada unikalne cechy biologiczne i molekularne, które odróżniają go od innych typów raka piersi i przyczyniają się do jego agresywnego charakteru.

Podtypy molekularne

Podobnie jak inne formy raka piersi, IBC można podzielić na trzy podtypy molekularne, które mogą napędzać wzrost i rozprzestrzenianie się nowotworu: HER2-dodatni, z dodatnimi receptorami hormonalnymi i potrójnie ujemny⁵⁴.

W porównaniu do niezapalnego raka piersi, IBC częściej jest HER2-dodatni lub potrójnie ujemny⁵⁵⁵⁶. Raki zapalnego raka piersi często są hormonalnie negatywne, co oznacza, że ich komórki nie mają receptorów dla estrogenu lub progesteronu na powierzchni. Oznacza to, że terapie (takie jak tamoksyfen), które celują w wzrost guza stymulowany estrogenem, prawdopodobnie nie będą skuteczne⁵⁷.

Niektóre podtypy zapalnego raka piersi mają gorsze rokowanie niż inne. Należą do nich zapalny rak piersi, który jest HER2-ujemny i hormonalnie dodatni oraz HER2-ujemny i hormonalnie ujemny (potrójnie ujemny zapalny rak piersi)⁵⁸.

Szlaki sygnałowe i geny

Badania wykazały częstsze mutacje w NOTCH (które mogą napędzać zachowanie podobne do komórek macierzystych raka), naprawie DNA i szlakach RAS/RAF kontrolujących podtyp, a także unikalne interakcje z mikrośrodowiskiem, z widocznymi szlakami zapalnymi na profilach ekspresji genów⁵⁹⁶⁰.

Paradoksalnie, niektóre badania sugerują, że szczególnie agresywne fenotypy IBC charakteryzują się wysokim poziomem ekspresji genów docelowych NF-κB, które mogą być w warunkach laboratoryjnych skutecznie modulowane przez estrogen, ale nie przez tamoksyfen⁶¹.

Niedawne badania opisują niską ekspresję TGF u pacjentów z IBC, co może promować spójną inwazję komórek IBC⁶².

Cechy inwazyjne i przerzutowe

Zapalny rak piersi ma tendencję do szybkiego rozprzestrzeniania się, często w ciągu tygodni lub miesięcy⁶³. Ta agresywna biologia przyczynia się do faktu, że w około jednej trzeciej przypadków w momencie diagnozy choroba jest już w stadium rozsianym (przerzutowym)⁶⁴⁶⁵.

IBC wykazuje tendencję do większej częstości przerzutów do narządów miąższowych w porównaniu z innymi formami raka piersi ze względu na wcześniejsze i bardziej agresywne rozprzestrzenianie się drogą krwionośną⁶⁶.

Większość kobiet z zapalnym rakiem piersi ma w momencie diagnozy dodatnie węzły chłonne. Oznacza to, że pachowe węzły chłonne (węzły chłonne w okolicy pachy) zawierają komórki rakowe⁶⁷.

Odkrycie, że inwazja limfatyczna i odległe przerzuty występują podczas początkowej prezentacji, doprowadziło do postrzegania IBC jako choroby układowej, a nie miejscowo zaawansowanego raka⁶⁸.

Konsekwencje diagnostyczne i terapeutyczne

Zrozumienie specyficznej etiologii i biologii zapalnego raka piersi ma istotne implikacje dla jego diagnostyki i leczenia.

Wyzwania diagnostyczne

Ze względu na rzadkość występowania i nietypową prezentację kliniczną, zapalny rak piersi jest często nieprawidłowo diagnozowany na początkowym etapie. Badania wykazały, że lekarze ogólni błędnie diagnozują ponad 90% kobiet z IBC podczas początkowej oceny⁶⁹.

Objawy IBC mogą być mylone z infekcją piersi (zapaleniem gruczołu sutkowego) lub ropniem piersi ze względu na podobieństwo objawów⁷⁰. Dlatego w przypadku objawów zapalnych, które nie ustępują po antybiotykoterapii, należy rozważyć możliwość zapalnego raka piersi⁷¹.

Diagnoza IBC opiera się na charakterystycznej prezentacji klinicznej i obecności raka inwazyjnego w biopsji piersi⁷². Warto zauważyć, że IBC jest oznaczony jako T4d w systemie klasyfikacji TNM Amerykańskiego Wspólnego Komitetu ds. Raka (AJCC)⁷³.

Podejście terapeutyczne

Ze względu na agresywny charakter zapalnego raka piersi, leczenie powinno być rozpoczęte jak najszybciej po diagnozie⁷⁴. Obecnie standardem opieki jest podejście wielomodalne, obejmujące chemioterapię, operację i radioterapię⁷⁵.

Chemioterapia neoadjuwantowa (przedoperacyjna) jest zazwyczaj pierwszym krokiem w leczeniu IBC⁷⁶. Prowadzenie intensywnej chemioterapii jest kluczowe, a IBC nie jest chorobą, w której stosuje się mniej rygorystyczne metody w celu zmniejszenia skutków ubocznych⁷⁷.

Przyjęcie chemioterapii neoadjuwantowej poprawiło wyniki leczenia IBC⁷⁸. Badania wykazały, że przy odpowiednim leczeniu 5-letni wskaźnik przeżycia dla IBC wynosi około 70% dla pacjentów w stadium III i do 50% dla nowo zdiagnozowanych pacjentów w stadium IV⁷⁹.

Cechy złego rokowania obejmują status potrójnie ujemny, status dodatni dla receptorów hormonalnych/ujemny dla HER2, cztery lub więcej zajętych węzłów chłonnych przed terapią oraz brak odpowiedzi na chemioterapię neoadjuwantową⁸⁰⁸¹.

Perspektywy i kierunki badań

Zrozumienie przyczyn i mechanizmów rozwoju zapalnego raka piersi pozostaje obszarem intensywnych badań. Przyszłe kierunki badań obejmują:

Badania nad specyficznymi markerami molekularnymi i genetycznymi, które mogą pomóc w identyfikacji osób o zwiększonym ryzyku rozwoju IBC⁸²
Badania nad rolą wirusów i stanów zapalnych w patogenezie IBC⁸³
Rozwój lepszych kryteriów diagnostycznych, które pozwoliłyby na wcześniejsze wykrycie choroby⁸⁴
Opracowanie nowych strategii terapeutycznych, które mogłyby poprawić wyniki leczenia pacjentów z IBC⁸⁵
Badania nad interakcjami komórek nowotworowych z mikrośrodowiskiem⁸⁶

Kontynuacja badań, szczególnie na poziomie molekularnym, zwiększy nasze zrozumienie, jak zapalny rak piersi powstaje i postępuje, co może prowadzić do lepszych metod profilaktyki, diagnostyki i leczenia tej agresywnej formy raka piersi⁸⁷.

Kolejne rozdziały

Zapraszamy do dalszego czytania naszego leksykonu.

Wybierz kolejny rozdział z menu poniżej, aby otworzyć nową podstronę kompedium wiedzy i uzyskać szczegółowe informację o leku, substancji lub chorobie.

Materiały źródłowe

#1 What is Inflammatory Breast Cancer? Symptoms, Risk Factors & Treatments | MD Anderson Cancer Center
https://www.mdanderson.org/cancer-types/inflammatory-breast-cancer.html
At this time, there are no mutations associated specifically with IBC. […] A woman who has had breast cancer once has a higher risk of developing a second cancer. […] People who had radiation therapy to the chest in childhood or early adulthood to treat another cancer are at a higher risk of developing breast cancer. […] Obesity, particularly after menopause, increases a woman’s breast cancer risk. […] Dense breast tissue is a known risk factor for breast cancer. […] IBC represents only 1%-5% of all breast cancer cases in the United States. Due to its aggressive nature, though, it accounts for about 10% of U.S. breast cancer deaths. […] MD Anderson has played a key role in development of many treatments to improve the survival of inflammatory breast cancer patients.
#2 Inflammatory Breast Cancer: A Panoramic Overview
https://www.rarediseasesjournal.com/articles/inflammatory-breast-cancer-a-panoramic-overview.html
Inflammatory breast cancer (IBC) is a unique breast cancer with a highly virulent course and low 5- and 10-year survival rates. […] Although IBC is estimated to account for 1-5% of breast cancer annually it the United States, it is thought to account for nearly 10% of breast cancer deaths. […] The potential for inaccurate diagnosis and misclassification in cases of IBC is increased by many factors. […] The current consensus in the field is that IBC is not only phenotypically different, but also molecularly different from other forms of breast cancer. […] The discovery that lymphatic invasion and distinct metastasis occur during initial presentation led to the thinking of IBC as a systemic disease, and not a locally advanced cancer. […] There are several discreet risk factors that have been established for IBC.
#3 Inflammatory breast cancer – Symptoms and causes – Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/inflammatory-breast-cancer/symptoms-causes/syc-20355413
Inflammatory breast cancer happens when a growth of cells forms in the breast tissue. The cells break away from where they started to grow and travel to the lymphatic vessels in the skin. The cells can block the vessels and cause the skin on the breast to look swollen. This skin on the breast might look red or purple. […] Inflammatory breast cancer happens when cells in the breast develop changes in their DNA. A cell’s DNA holds the instructions that tell the cell what to do. In healthy cells, the DNA gives instructions to grow and multiply at a set rate. The instructions tell the cells to die at a set time. In cancer cells, the DNA changes give different instructions. The changes tell the cancer cells to make many more cells quickly. Cancer cells can keep living when healthy cells would die. This causes too many cells.
#4 Inflammatory Breast Cancer: Signs, Symptoms, Causes & Treatment
https://my.clevelandclinic.org/health/diseases/17925-inflammatory-breast-cancer
Inflammatory breast cancer (IBC) is a rare type of cancer that spreads quickly. […] IBC results when cancer cells block lymph vessels the small, hollow tubes that allow lymph fluid to drain out of your breast. […] IBC grows fast and requires immediate treatment. […] Most inflammatory breast cancer is considered invasive ductal carcinoma. […] Inflammatory breast cancer develops when cancer cells block lymph vessels. […] In most cases of IBC, cancer cells spread outward (metastasize) from your lymph vessels. […] Because IBC develops so quickly, the cancer has usually spread to other tissues (metastasis) by the time its diagnosed. […] You cant prevent inflammatory breast cancer. […] IBC is considered a fast-growing (aggressive) cancer. […] IBC usually develops quickly and spreads to other tissues outside of your breast.
#5 Inflammatory Breast Cancer: Symptoms, Diagnosis, Treatment
https://www.nationalbreastcancer.org/inflammatory-breast-cancer/
Accounting for 1 to 5% of all breast cancer cases, inflammatory breast cancer (IBC) is a rare and aggressive type of breast cancer. IBC occurs when cancer cells infiltrate the skin and lymph vessels of the breast. IBC is harder to diagnose than other types of breast cancer and tends to occur in younger women. It also spreads more quickly than other types of breast cancer. […] There is no clear cause of inflammatory breast cancer. […] Most IBC is considered invasive ductal carcinoma, a type of cancer that forms from the cells that line milk ducts in the breast and then spreads to other parts of the breast tissue or other parts of the body, although the symptoms and treatment differ. […] Inflammatory breast cancer, which is more common in women under the age of 40, Black women, and those who have a higher body mass index (BMI), develops when cancerous cells block lymph vessels, which are small tubes that allow lymph fluid to drain out of the breast. This blockage is what creates the swelling and discoloration in the breast. […] Despite the name, inflammatory breast cancer is not caused by inflammation. Rather, the term refers to the inflamed appearance of the breasts.
#6 Inflammatory Breast Cancer: Symptoms, Treatment, Research | Breast Cancer Research Foundation
https://www.bcrf.org/about-breast-cancer/inflammatory-breast-cancer/
Inflammatory breast cancer (IBC) is a rare but very aggressive subtype of the disease, accounting for one to five percent of all breast cancers diagnosed in the U.S. […] Inflammatory breast cancer generally occurs in younger women (under 40), with Black women having a higher risk than white women. […] Further, inflammatory breast cancer is more common in obese women compared to their normal-weight counterparts. […] Inflammatory breast cancer occurs when cancer cells block lymph vessels in the skin of the breast. […] When a lymph vessel is blocked, inflammation develops. […] Most inflammatory breast cancers develop from cells that line the milk ducts of the breast and then spread beyond the ducts. […] This subset of invasive breast cancer spreads rapidly, often to nearby lymph nodes and sometimes to distant parts of the body.
#7 Inflammatory Breast Cancer (IBC) | Susan G. KomenÂ®
https://www.komen.org/breast-cancer/treatment/by-diagnosis/inflammatory-breast-cancer/
Most inflammatory breast cancers are invasive ductal carcinomas. This means they began in the milk ducts. […] Some women are more likely than others to be diagnosed with inflammatory breast cancer, including Black and African American women and women who are obese. […] About one-third of women with inflammatory breast cancer have metastases (metastatic breast cancer) when they are diagnosed. This means the cancer has spread beyond the breast and nearby lymph nodes to other parts of the body such as the bones, lungs, liver or brain. […] Inflammatory breast cancer may first be mistaken for an infection or mastitis because of the redness and swelling, and the frequent lack of a breast lump. […] Some inflammatory breast cancers tend to have worse survival than others. These include inflammatory breast cancers that are HER2-negative and hormone receptor-positive and HER2-negative and hormone receptor-negative (triple negative inflammatory breast cancers). […] Most women with inflammatory breast cancer have lymph node-positive breast cancer when they are diagnosed. This means the axillary lymph nodes (the lymph nodes in the underarm area) contain cancer.
#8 Inflammatory breast cancer – Symptoms and causes – Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/inflammatory-breast-cancer/symptoms-causes/syc-20355413
In inflammatory breast cancer, the cancer cells break away from where they started. They travel to the lymphatic vessels in the breast skin. The cells grow to clog the vessels. The blockage in the lymphatic vessels causes skin color changes, swelling and dimpled skin. This skin is a classic sign of inflammatory breast cancer.
#9 Inflammatory breast cancer | Health Library | Memorial Health System
https://www.mhsystem.org/health-library/con-20248519/
Inflammatory breast cancer happens when cells in the breast develop changes in their DNA. A cells DNA holds the instructions that tell the cell what to do. In healthy cells, the DNA gives instructions to grow and multiply at a set rate. The instructions tell the cells to die at a set time. In cancer cells, the DNA changes give different instructions. The changes tell the cancer cells to make many more cells quickly. Cancer cells can keep living when healthy cells would die. This causes too many cells. […] In inflammatory breast cancer, the cancer cells break away from where they started. They travel to the lymphatic vessels in the breast skin. The cells grow to clog the vessels. The blockage in the lymphatic vessels causes skin color changes, swelling and dimpled skin. This skin is a classic sign of inflammatory breast cancer.
#10 Inflammatory breast cancer: Clinical features and treatment – UpToDate
https://www.uptodate.com/contents/inflammatory-breast-cancer-clinical-features-and-treatment
The initial evaluation focuses on establishing a diagnosis of invasive breast cancer, with subsequent evaluations to confirm histology and assess the extent of involvement. […] IBC is designated as T4d in the American Joint Committee on Cancer (AJCC) Tumor, Node, Metastasis (TNM) staging system. […] The role of imaging studies in monitoring response to therapy is discussed separately. […] Inflammatory breast cancer (IBC) is associated with a particularly poor prognosis and high risk of early recurrence, although with proper primary and adjuvant therapies, the survival rate is much higher than in the past. […] Poor prognostic features include triple-negative receptor status, hormone receptor-positive/human epidermal growth factor receptor 2 (HER2)-negative status, four or more involved lymph nodes prior to therapy, and lack of response to neoadjuvant chemotherapy. […] The adoption of neoadjuvant chemotherapy has improved outcomes for IBC.
#11 Inflammatory breast cancer | Altru Health System
https://www.altru.org/health-library/conditions/inflammatory-breast-cancer
Inflammatory breast cancer happens when cells in the breast develop changes in their DNA. A cell’s DNA holds the instructions that tell the cell what to do. In healthy cells, the DNA gives instructions to grow and multiply at a set rate. The instructions tell the cells to die at a set time. In cancer cells, the DNA changes give different instructions. The changes tell the cancer cells to make many more cells quickly. Cancer cells can keep living when healthy cells would die. This causes too many cells. […] In inflammatory breast cancer, the cancer cells break away from where they started. They travel to the lymphatic vessels in the breast skin. The cells grow to clog the vessels. The blockage in the lymphatic vessels causes skin color changes, swelling and dimpled skin. This skin is a classic sign of inflammatory breast cancer.
#12 Inflammatory breast cancer: New factors contribute to disease etiology: A review
https://pmc.ncbi.nlm.nih.gov/articles/PMC4294279/
Inflammatory breast cancer (IBC) is a highly metastatic and fatal form of breast cancer. […] In addition, viral infection was also suggested to participate in the etiology of IBC disease. […] Recent studies comparing MicroRNAs (miRNAs) expression profiles in non-IBC, IBC carcinoma tissues, and normal breast tissues found that IBC patients are characterized by five over-expressed miRNAs comprising miR-421, miR-486, miR-503, miR-720, and miR-1303. […] The involvement of viral infection in IBC was suggested by Pogo and colleagues when they detected HMTV (MMTV-related virus) in 71% of IBC cases compared to 40% of non-IBC cases in American patients. […] The unique phenotype of IBC exhibits properties associated with HCMV infection including secretions of cytokines and proteases that induce cellular migration, angiogenesis and activation of NF-B signaling pathway, a specific pathway found to be induced by HCMV infection.
#13 What is inflammatory breast cancer (IBC)? | MD Anderson Cancer Center
https://www.mdanderson.org/cancerwise/9-questions-about-inflammatory-breast-cancer–answered.h00-159306990.html
Risk factors that may influence IBC include: race: Black women have a higher incidence of IBC, high body weight: can increase your risk, breastfeeding: reduces risk, age at first pregnancy: being younger may increase your risk. […] Yes. Although IBC can happen at any age, IBC is more common among women who: are under the age of 40, have high body weight, have Black ancestry. […] Development seems to be influenced by the normal changes that take place in breast tissue after childbirth (from dormancy to active milk production and back again) and that is actively being studied. […] Inflammatory breast cancer has specific features that drive progression, resistance and the migration of cancer cells, so it has a high rate of spreading and recurrence. […] Inflammatory breast cancer is not a disease for diluting therapies or using less rigorous methods to try to reduce side effects.
#14 (PDF) Inflammatory breast cancer: New factors contribute to disease etiology: A review
https://www.academia.edu/14161153/Inflammatory_breast_cancer_New_factors_contribute_to_disease_etiology_A_review
Inflammatory breast cancer (IBC) is a highly metastatic and fatal form of breast cancer. […] In addition, viral infection was also suggested to participate in the etiology of IBC disease. […] Current evidence suggests that several major inflammatory signaling pathways are constitutively active in IBC and breast cancer. Among them, the NF-B, COX-2, and JAK/STAT signaling systems seem to play a major role in the tumorigenesis of IBC. […] Inflammatory molecules such as interleukin-6, tumor necrosis factor alpha (TNF-), and gamma interferon have been shown to contribute to malignant transformation in preclinical studies of IBC, while transforming growth factor-, interleukins 8 and 1, as well as TNF- appear to play a role in proliferation, survival, epithelial-mesenchymal transition, invasion, and metastasis.
#15 (PDF) Inflammatory breast cancer: New factors contribute to disease etiology: A review
https://www.academia.edu/14161153/Inflammatory_breast_cancer_New_factors_contribute_to_disease_etiology_A_review
Inflammatory breast cancer (IBC) is a highly metastatic and fatal form of breast cancer. […] In addition, viral infection was also suggested to participate in the etiology of IBC disease. […] Current evidence suggests that several major inflammatory signaling pathways are constitutively active in IBC and breast cancer. Among them, the NF-B, COX-2, and JAK/STAT signaling systems seem to play a major role in the tumorigenesis of IBC. […] Inflammatory molecules such as interleukin-6, tumor necrosis factor alpha (TNF-), and gamma interferon have been shown to contribute to malignant transformation in preclinical studies of IBC, while transforming growth factor-, interleukins 8 and 1, as well as TNF- appear to play a role in proliferation, survival, epithelial-mesenchymal transition, invasion, and metastasis.
#16 Inflammatory Breast Cancer: Symptoms, Causes, and Treatment Options
https://www.everydayhealth.com/breast-cancer/inflammatory-breast-cancer/guide/
Researchers havent identified the exact cause of IBC. […] They do know that IBC develops when cancer cells block lymph vessels, which normally help drain lymph fluid from your breast. […] While anyone can develop IBC, you may be more likely to have this type of breast cancer if you are: […] A Woman While IBC can also affect men, its more common in women. […] Younger IBC tends to affect a younger population than other forms of breast cancer. The average age at diagnosis is 57. […] Black People who are Black have a higher risk of developing IBC. […] Overweight or Have Obesity Having a high body mass index (BMI) can raise your risk for IBC.
#17 What is inflammatory breast cancer (IBC)? | MD Anderson Cancer Center
https://www.mdanderson.org/cancerwise/9-questions-about-inflammatory-breast-cancer–answered.h00-159306990.html
Risk factors that may influence IBC include: race: Black women have a higher incidence of IBC, high body weight: can increase your risk, breastfeeding: reduces risk, age at first pregnancy: being younger may increase your risk. […] Yes. Although IBC can happen at any age, IBC is more common among women who: are under the age of 40, have high body weight, have Black ancestry. […] Development seems to be influenced by the normal changes that take place in breast tissue after childbirth (from dormancy to active milk production and back again) and that is actively being studied. […] Inflammatory breast cancer has specific features that drive progression, resistance and the migration of cancer cells, so it has a high rate of spreading and recurrence. […] Inflammatory breast cancer is not a disease for diluting therapies or using less rigorous methods to try to reduce side effects.
#18 What is Inflammatory Breast Cancer? | WVCI Breast Cancer Doctors
https://www.oregoncancer.com/blog/what-is-inflammatory-breast-cancer
Inflammatory breast cancer is an uncommon but aggressive form of breast cancer. About 1% to 5% of breast cancer diagnosed in the United States is inflammatory breast cancer. This rare type of breast cancer occurs most often in younger women, including those under 40. […] The risk factors for IBC are essentially the same as for other types of breast cancer family history, early menstruation, obesity, alcohol consumption, a diet low in fruits and vegetables, and lack of physical activity. Researchers haven’t found any genetic mutations specific to IBC. […] The specific cause for the unusual symptoms is that IBC begins when cancer cells form in your breast’s milk ducts. As these cancer cells multiply, they block the lymph vessels, causing the breast to swell and become inflamed because the lymph fluid can’t move from the breast tissue.
#19 Inflammatory Breast Cancer Symptoms and Treatment
https://www.verywellhealth.com/ibc-inflammatory-breast-cancer-430621
Inflammatory breast cancer (IBC) is an uncommon and aggressive type of breast cancer. […] Researchers aren’t sure what causes IBC specifically, but some risk factors have been identified, including: […] Black women are at a greater risk for developing IBC than White women. […] People who are overweight or obese have a slightly increased risk of IBC, but it can impact people of average weight as well.
#20 Inflammatory Breast Cancer: Signs, Symptoms, and More
https://www.healthline.com/health/inflammatory-breast-cancer-signs
There are a few risk factors associated with developing IBC. These include obesity, insulin resistance, being pregnant at a younger age, lack of breastfeeding or chestfeeding, which may lead to a poorer outlook after diagnosis, and smoking. […] Research shows that IBC has a higher prevalence in Black women compared with white women, a situation that may be due to racial and socioeconomic disparities in the healthcare system.
#21 Inflammatory Breast Cancer: Signs, Symptoms, and More
https://www.healthline.com/health/inflammatory-breast-cancer-signs
There are a few risk factors associated with developing IBC. These include obesity, insulin resistance, being pregnant at a younger age, lack of breastfeeding or chestfeeding, which may lead to a poorer outlook after diagnosis, and smoking. […] Research shows that IBC has a higher prevalence in Black women compared with white women, a situation that may be due to racial and socioeconomic disparities in the healthcare system.
#22 Inflammatory Breast Cancer: A Panoramic Overview
https://www.rarediseasesjournal.com/articles/inflammatory-breast-cancer-a-panoramic-overview.html
It has been found that women who have an earlier age of menarche, and earlier birth of first child are at a higher risk of being diagnosed with IBC. […] Furthermore, it has been discovered in a study that breast-feeding exceeding duration of 24 months increases the risk of IBC diagnosis. […] The percentage of IBC cases is significantly higher Northern Africa. […] The confounding deviation of incidence rates between countries may be caused by different diagnostic tools, definition of diagnosis, and varying risk factors in each region. […] The key to increasing the accuracy of diagnosis and classification of IBC may be continuing medical education (CME) within the medical community. […] The largest obstacle IBC patients face is how unfamiliar general and gynecological physicians are with the initial symptoms of IBC.
#23 Inflammatory Breast Cancer – StatPearls – NCBI Bookshelf
https://www.ncbi.nlm.nih.gov/books/NBK564324/
Inflammatory breast cancer (IBC) is a rare subtype of locally advanced breast cancer according to the TNM breast cancer staging system. Despite its low incidence, IBC contributes to 7% of breast cancer caused mortality. […] A high body mass index is an independent risk factor for inflammatory breast cancer. Possible risk factors that need further investigation are viral infections and chronic inflammation, younger age at first live birth, smoking, and breastfeeding. […] Inherited genetic mutations and family history have demonstrated no association.
#24 Variations in Risk Factors Suggest Distinct Etiology for Inflammatory Breast Cancer – The ASCO Post
https://ascopost.com/issues/november-15-2013/variations-in-risk-factors-suggest-distinct-etiology-for-inflammatory-breast-cancer/
Varying risk factor associations between inflammatory and noninflammatory breast cancer suggest a distinct etiology for inflammatory breast cancer, according to a study in the Journal of the National Cancer Institute. […] High body mass index was shown to increase risk of inflammatory breast cancer irrespective of menopausal status and estrogen receptor (ER) expression, the researchers reported. […] Notably, overweight and obesity statuses were associated with increased inflammatory breast cancer risk regardless of the internal hormonal milieu or the ER status of the tumors, the researchers commented. […] According to an editorial accompanying the article, These findings show conclusively that obesity is a strong risk factor for inflammatory breast cancer, and they are in stark contrast with the far lower rate ratios for the association of obesity with other breast cancer types, which ranged from 1.02 to 1.36. This finding supports the idea that inflammatory breast cancer is a distinct epidemiologic entity, in addition to being a distinct clinicopathologic entity, wrote the editorialists.
#25 Variations in Risk Factors Suggest Distinct Etiology for Inflammatory Breast Cancer – The ASCO Post
https://ascopost.com/issues/november-15-2013/variations-in-risk-factors-suggest-distinct-etiology-for-inflammatory-breast-cancer/
Varying risk factor associations between inflammatory and noninflammatory breast cancer suggest a distinct etiology for inflammatory breast cancer, according to a study in the Journal of the National Cancer Institute. […] High body mass index was shown to increase risk of inflammatory breast cancer irrespective of menopausal status and estrogen receptor (ER) expression, the researchers reported. […] Notably, overweight and obesity statuses were associated with increased inflammatory breast cancer risk regardless of the internal hormonal milieu or the ER status of the tumors, the researchers commented. […] According to an editorial accompanying the article, These findings show conclusively that obesity is a strong risk factor for inflammatory breast cancer, and they are in stark contrast with the far lower rate ratios for the association of obesity with other breast cancer types, which ranged from 1.02 to 1.36. This finding supports the idea that inflammatory breast cancer is a distinct epidemiologic entity, in addition to being a distinct clinicopathologic entity, wrote the editorialists.
#26 Suffering from Inflammatory Breast Cancer? Get treated by experience Oncologist
https://www.ckbhospital.com/specialities/oncology/inflammatory-breast-cancer/
Inflammatory breast cancer can occur in people of all gender. The likelihood of getting this type of cancer increases based on factors like: […] It has been found that fat tissues in the body produce greater amounts of oestrogen. It is because of this that a person who is overweight or obese is at a higher risk of cancer. Inflammatory breast cancer signs and symptoms can also thus be noticed more often in people who are obese. […] Research shows that inflammatory breast cancer symptoms are more common in people of African, Indian/Pakistani and Hispanic descent.
#27 Inflammatory Breast Cancer – StatPearls – NCBI Bookshelf
https://www.ncbi.nlm.nih.gov/books/NBK564324/
Inflammatory breast cancer (IBC) is a rare subtype of locally advanced breast cancer according to the TNM breast cancer staging system. Despite its low incidence, IBC contributes to 7% of breast cancer caused mortality. […] A high body mass index is an independent risk factor for inflammatory breast cancer. Possible risk factors that need further investigation are viral infections and chronic inflammation, younger age at first live birth, smoking, and breastfeeding. […] Inherited genetic mutations and family history have demonstrated no association.
#28 Inflammatory Breast Cancer – Diagnosis & Disease Information
https://www.cancertherapyadvisor.com/ddi/inflammatory-breast-cancer/
Inflammatory breast cancer (IBC) is a serious and aggressive disease that can be difficult to manage depending on the hormone receptor (HR) status of the breast tumor and available treatment options. […] As it is not well understood, further research on IBC is needed to expand diagnostic ability and treatments to improve patient outcomes. […] The article discusses risk factors for IBC, including being a woman younger than 40, being Black, high BMI, smoking, and having HR-negative tumors. […] The inflamed appearance of IBC differs from other types of breast cancers, and genetic variants and family history generally do not have as strong of an association as other types of breast cancer. However, genetic variants have been identified in some patients with IBC, and they can inform treatment decisions.
#29 Inflammatory Breast Cancer (IBC): Symptoms, Causes, More
https://www.health.com/condition/breast-cancer/inflammatory-breast-cancer
Inflammatory breast cancer (IBC) is a rare and aggressive form of breast cancer that has spread to the breast skin. About 1% to 5% of all breast cancer cases are IBC. […] Research has found some unique risk factors for IBC. Still, researchers don’t know why some people develop IBC. Family history may play a more minor role in IBC than other types of breast cancer, according to a study published in 2016 in BMC Cancer. […] Breast cancer occurs when changes in your genetic material, DNA, cause cells in the breast tissue to grow out of control. […] Like all cancers, breast cancer is related to both genetic and epigenetic abnormalities. You may inherit genetic mutations, such as a BRCA mutation. In contrast, epigenetic factors are behavioral and environmental influences on how your genes work. […] Also, some lifestyle and environmental factors can play a role, such as drinking alcohol, having an early period, and radiation exposure.
#30 What is Inflammatory Breast Cancer? Symptoms, Risk Factors & Treatments | MD Anderson Cancer Center
https://www.mdanderson.org/cancer-types/inflammatory-breast-cancer.html
At this time, there are no mutations associated specifically with IBC. […] A woman who has had breast cancer once has a higher risk of developing a second cancer. […] People who had radiation therapy to the chest in childhood or early adulthood to treat another cancer are at a higher risk of developing breast cancer. […] Obesity, particularly after menopause, increases a woman’s breast cancer risk. […] Dense breast tissue is a known risk factor for breast cancer. […] IBC represents only 1%-5% of all breast cancer cases in the United States. Due to its aggressive nature, though, it accounts for about 10% of U.S. breast cancer deaths. […] MD Anderson has played a key role in development of many treatments to improve the survival of inflammatory breast cancer patients.
#31 What is Inflammatory Breast Cancer? | WVCI Breast Cancer Doctors
https://www.oregoncancer.com/blog/what-is-inflammatory-breast-cancer
Inflammatory breast cancer is an uncommon but aggressive form of breast cancer. About 1% to 5% of breast cancer diagnosed in the United States is inflammatory breast cancer. This rare type of breast cancer occurs most often in younger women, including those under 40. […] The risk factors for IBC are essentially the same as for other types of breast cancer family history, early menstruation, obesity, alcohol consumption, a diet low in fruits and vegetables, and lack of physical activity. Researchers haven’t found any genetic mutations specific to IBC. […] The specific cause for the unusual symptoms is that IBC begins when cancer cells form in your breast’s milk ducts. As these cancer cells multiply, they block the lymph vessels, causing the breast to swell and become inflamed because the lymph fluid can’t move from the breast tissue.
#32 Inflammatory Breast Cancer – Diagnosis & Disease Information
https://www.cancertherapyadvisor.com/ddi/inflammatory-breast-cancer/
Inflammatory breast cancer (IBC) is a serious and aggressive disease that can be difficult to manage depending on the hormone receptor (HR) status of the breast tumor and available treatment options. […] As it is not well understood, further research on IBC is needed to expand diagnostic ability and treatments to improve patient outcomes. […] The article discusses risk factors for IBC, including being a woman younger than 40, being Black, high BMI, smoking, and having HR-negative tumors. […] The inflamed appearance of IBC differs from other types of breast cancers, and genetic variants and family history generally do not have as strong of an association as other types of breast cancer. However, genetic variants have been identified in some patients with IBC, and they can inform treatment decisions.
#33 What is Inflammatory Breast Cancer? Symptoms, Risk Factors & Treatments | MD Anderson Cancer Center
https://www.mdanderson.org/cancer-types/inflammatory-breast-cancer.html
Inflammatory breast cancer (IBC) is a rare, aggressive form of breast cancer. Instead of forming a lump, the disease causes the affected breast to become swollen, red and tender, often in a matter of days or weeks. […] These symptoms are not caused by inflammation. Instead, they are caused by cancer cells blocking lymph vessels in the skin and soft tissue. […] Like more common forms of breast cancer, IBC can be divided into three molecular subtypes that can fuel the cancer’s growth and spread: HER2-positive, hormone receptor positive, and triple-negative. Compared to non-inflammatory breast cancer, IBC is more often HER2-positive or triple-negative. […] The risk factors for inflammatory breast cancer are the same for other breast cancers. […] Specific gene mutations increase the risk of developing cancer. These include BRCA1 and BRCA2 mutations.
#34 Inflammatory Breast Cancer: Signs and Symptoms â Regional Cancer Care Associates
https://www.regionalcancercare.org/news/early-signs-of-inflammatory-breast-cancer/
Inflammatory breast cancer is a type of breast cancer in which cancer cells block lymph vessels in the skin of the breast. […] Most cases of IBC arise from untreated invasive carcinomas within the breast. […] Risk factors for IBC include: […] Women who are younger than age 40 are more likely to be diagnosed with IBC than with other forms of breast cancer. […] Women who have genetic mutations like BRCA1 (breast cancer gene one) or BRCA2 (breast cancer gene two) can have an increased risk of inflammatory breast cancer. […] IBC is difficult to diagnose in its early stages because there are no lumps that indicate problems. […] Patients diagnosed with IBC often wonder if the disease could have been caught earlier, but this generally isn’t the case with inflammatory breast cancer. […] IBC is the most aggressive type of breast cancer and is generally associated with a poor prognosis.
#35 Inflammatory breast cancer – Wikipedia
https://en.wikipedia.org/wiki/Inflammatory_breast_cancer
Inflammatory breast cancer (IBC) is one of the most aggressive types of breast cancer. […] Whether inflammation contributes to the development of this disease remains an area of ongoing research. […] Age distribution and relation to breastfeeding duration is suggestive of the involvement of hormones in the causation of IBC; however, significant differences exist between IBC and other breast cancers. […] Typically, IBC shows low levels of estrogen and progesterone receptor sensitivity, which corresponds with poor outcome. […] Paradoxically, some findings suggest that especially-aggressive phenotypes of IBC are characterised by a high level of NF kappaB target gene expression, which can be, under laboratory conditions, successfully modulated by estrogen, but not by tamoxifen.
#36 What is inflammatory breast cancer (IBC)? | MD Anderson Cancer Center
https://www.mdanderson.org/cancerwise/9-questions-about-inflammatory-breast-cancer–answered.h00-159306990.html
Risk factors that may influence IBC include: race: Black women have a higher incidence of IBC, high body weight: can increase your risk, breastfeeding: reduces risk, age at first pregnancy: being younger may increase your risk. […] Yes. Although IBC can happen at any age, IBC is more common among women who: are under the age of 40, have high body weight, have Black ancestry. […] Development seems to be influenced by the normal changes that take place in breast tissue after childbirth (from dormancy to active milk production and back again) and that is actively being studied. […] Inflammatory breast cancer has specific features that drive progression, resistance and the migration of cancer cells, so it has a high rate of spreading and recurrence. […] Inflammatory breast cancer is not a disease for diluting therapies or using less rigorous methods to try to reduce side effects.
#37 Inflammatory Breast Cancer: A Panoramic Overview
https://www.rarediseasesjournal.com/articles/inflammatory-breast-cancer-a-panoramic-overview.html
It has been found that women who have an earlier age of menarche, and earlier birth of first child are at a higher risk of being diagnosed with IBC. […] Furthermore, it has been discovered in a study that breast-feeding exceeding duration of 24 months increases the risk of IBC diagnosis. […] The percentage of IBC cases is significantly higher Northern Africa. […] The confounding deviation of incidence rates between countries may be caused by different diagnostic tools, definition of diagnosis, and varying risk factors in each region. […] The key to increasing the accuracy of diagnosis and classification of IBC may be continuing medical education (CME) within the medical community. […] The largest obstacle IBC patients face is how unfamiliar general and gynecological physicians are with the initial symptoms of IBC.
#38 Inflammatory Breast Cancer: A Panoramic Overview
https://www.rarediseasesjournal.com/articles/inflammatory-breast-cancer-a-panoramic-overview.html
It has been found that women who have an earlier age of menarche, and earlier birth of first child are at a higher risk of being diagnosed with IBC. […] Furthermore, it has been discovered in a study that breast-feeding exceeding duration of 24 months increases the risk of IBC diagnosis. […] The percentage of IBC cases is significantly higher Northern Africa. […] The confounding deviation of incidence rates between countries may be caused by different diagnostic tools, definition of diagnosis, and varying risk factors in each region. […] The key to increasing the accuracy of diagnosis and classification of IBC may be continuing medical education (CME) within the medical community. […] The largest obstacle IBC patients face is how unfamiliar general and gynecological physicians are with the initial symptoms of IBC.
#39 What is inflammatory breast cancer (IBC)? | MD Anderson Cancer Center
https://www.mdanderson.org/cancerwise/9-questions-about-inflammatory-breast-cancer–answered.h00-159306990.html
Risk factors that may influence IBC include: race: Black women have a higher incidence of IBC, high body weight: can increase your risk, breastfeeding: reduces risk, age at first pregnancy: being younger may increase your risk. […] Yes. Although IBC can happen at any age, IBC is more common among women who: are under the age of 40, have high body weight, have Black ancestry. […] Development seems to be influenced by the normal changes that take place in breast tissue after childbirth (from dormancy to active milk production and back again) and that is actively being studied. […] Inflammatory breast cancer has specific features that drive progression, resistance and the migration of cancer cells, so it has a high rate of spreading and recurrence. […] Inflammatory breast cancer is not a disease for diluting therapies or using less rigorous methods to try to reduce side effects.
#40
https://www.advocatehealth.com/health-services/cancer-institute/cancers-we-treat/breast-cancer/inflammatory-breast-cancer
Factors such as early onset of menstruation, late onset of menopause and hormone replacement therapy may increase your risk. […] Previous radiation therapy to the chest area may increase the risk of developing inflammatory breast cancer later in life. […] Inflammatory breast cancer has a group of symptoms that sets it apart from other types of breast cancer. […] Rapid onset of symptoms: Unlike other types of breast cancer, IBC symptoms typically develop rapidly over weeks or months, rather than gradually. […] Diagnosing inflammatory breast cancer involves a combination of exams, imaging tests and biopsies. […] A biopsy is necessary to confirm the diagnosis of IBC. […] Treatment for inflammatory breast cancer involves a collaborative approach by your care team. […] Because IBC is aggressive and often diagnosed at a later stage, treatment is usually intensive and may include a combination of the following therapies or surgical options: Chemotherapy is employed for more aggressive cancers and usually given before surgery to shrink the tumor and slow the spread. […] Hormone therapy is used to block or reduce estrogen that is feeding cancer cells, which allows them to grow faster.
#41 Inflammatory Breast Cancer: Causes, Symptoms, Diagnosis & Treatment
https://www.ganeshdiagnostic.com/blog/inflammatory-breast-cancer-causes-symptoms-diagnosis-and-treatment
Inflammatory breast cancer (IBC) is an occasional and assertive variety of breast cancer that accounts for about 1-5% of all breast cancer cases. […] The reasons for inflammatory breast cancers (IBC) are no longer completely understood. […] Genetic elements play a position in the improvement of IBC. […] Environmental and way of life elements can also additionally contribute to the improvement of IBC. […] Hormone alternative remedy (HRT) may additionally extend the threat of breast cancer, though the affiliation between HRT and IBC is no longer clear. […] In addition to these factors, IBC has been linked to continual infection in the breast tissue. […] Chronic irritation can motivate modifications w in the cells of the breast tissue, increasing the chance of most cancer development.
#42
https://www.advocatehealth.com/health-services/cancer-institute/cancers-we-treat/breast-cancer/inflammatory-breast-cancer
Factors such as early onset of menstruation, late onset of menopause and hormone replacement therapy may increase your risk. […] Previous radiation therapy to the chest area may increase the risk of developing inflammatory breast cancer later in life. […] Inflammatory breast cancer has a group of symptoms that sets it apart from other types of breast cancer. […] Rapid onset of symptoms: Unlike other types of breast cancer, IBC symptoms typically develop rapidly over weeks or months, rather than gradually. […] Diagnosing inflammatory breast cancer involves a combination of exams, imaging tests and biopsies. […] A biopsy is necessary to confirm the diagnosis of IBC. […] Treatment for inflammatory breast cancer involves a collaborative approach by your care team. […] Because IBC is aggressive and often diagnosed at a later stage, treatment is usually intensive and may include a combination of the following therapies or surgical options: Chemotherapy is employed for more aggressive cancers and usually given before surgery to shrink the tumor and slow the spread. […] Hormone therapy is used to block or reduce estrogen that is feeding cancer cells, which allows them to grow faster.
#43 What is Inflammatory Breast Cancer? Symptoms, Risk Factors & Treatments | MD Anderson Cancer Center
https://www.mdanderson.org/cancer-types/inflammatory-breast-cancer.html
At this time, there are no mutations associated specifically with IBC. […] A woman who has had breast cancer once has a higher risk of developing a second cancer. […] People who had radiation therapy to the chest in childhood or early adulthood to treat another cancer are at a higher risk of developing breast cancer. […] Obesity, particularly after menopause, increases a woman’s breast cancer risk. […] Dense breast tissue is a known risk factor for breast cancer. […] IBC represents only 1%-5% of all breast cancer cases in the United States. Due to its aggressive nature, though, it accounts for about 10% of U.S. breast cancer deaths. […] MD Anderson has played a key role in development of many treatments to improve the survival of inflammatory breast cancer patients.
#44 Importance of hereditary and selected environmental risk factors in the etiology of inflammatory breast cancer: a case-comparison study | BMC Cancer | Full Text
https://bmccancer.biomedcentral.com/articles/10.1186/s12885-016-2369-z
To assess the importance of heredity in the etiology of inflammatory breast cancer (IBC), we compared IBC patients to several carefully chosen comparison groups with respect to the prevalence of first-degree family history of breast cancer. […] The etiologic components of IBC are generally unknown and the contributions of hereditary versus environmental/life style factors remain subject of controversy in the literature. […] On the other hand, reports of familial IBC, including in association with BRCA mutations suggest a role for heredity. […] Our findings that oral contraceptive use and regular alcohol consumption may be associated with IBC warrant further investigations. […] Our study found the prevalence of first-degree family history of breast cancer among IBC cases to be slightly lower or similar compared to breast and ovarian cancer cases but higher than unaffected individuals.
#45 Importance of hereditary and selected environmental risk factors in the etiology of inflammatory breast cancer: a case-comparison study | BMC Cancer | Full Text
https://bmccancer.biomedcentral.com/articles/10.1186/s12885-016-2369-z
Our findings of multiple-case inflammatory and non-inflammatory breast cancer families may further reflect aggregation of genetic factors and gene-environment interactions predisposing to both types of breast cancer. […] Our findings that oral contraceptive use and regular alcohol consumption may increase the risk of IBC are noteworthy due to modifiable nature of these potential risk factors. […] The role of inflammatory processes in IBC development is not known. […] Our results indicate that a proportion of IBC cases occur in the context of familial breast cancer which may be explained by aggregation of common hereditary factors and/or shared environmental risk factors predisposing to both inflammatory and non-inflammatory breast cancer in these families.
#46 What is Inflammatory Breast Cancer? | WVCI Breast Cancer Doctors
https://www.oregoncancer.com/blog/what-is-inflammatory-breast-cancer
Inflammatory breast cancer is an uncommon but aggressive form of breast cancer. About 1% to 5% of breast cancer diagnosed in the United States is inflammatory breast cancer. This rare type of breast cancer occurs most often in younger women, including those under 40. […] The risk factors for IBC are essentially the same as for other types of breast cancer family history, early menstruation, obesity, alcohol consumption, a diet low in fruits and vegetables, and lack of physical activity. Researchers haven’t found any genetic mutations specific to IBC. […] The specific cause for the unusual symptoms is that IBC begins when cancer cells form in your breast’s milk ducts. As these cancer cells multiply, they block the lymph vessels, causing the breast to swell and become inflamed because the lymph fluid can’t move from the breast tissue.
#47 Inflammatory breast cancer: New factors contribute to disease etiology: A review
https://pmc.ncbi.nlm.nih.gov/articles/PMC4294279/
Inflammatory breast cancer (IBC) is a highly metastatic and fatal form of breast cancer. […] In addition, viral infection was also suggested to participate in the etiology of IBC disease. […] Recent studies comparing MicroRNAs (miRNAs) expression profiles in non-IBC, IBC carcinoma tissues, and normal breast tissues found that IBC patients are characterized by five over-expressed miRNAs comprising miR-421, miR-486, miR-503, miR-720, and miR-1303. […] The involvement of viral infection in IBC was suggested by Pogo and colleagues when they detected HMTV (MMTV-related virus) in 71% of IBC cases compared to 40% of non-IBC cases in American patients. […] The unique phenotype of IBC exhibits properties associated with HCMV infection including secretions of cytokines and proteases that induce cellular migration, angiogenesis and activation of NF-B signaling pathway, a specific pathway found to be induced by HCMV infection.
#48 Inflammatory breast cancer: New factors contribute to disease etiology: A review
https://pmc.ncbi.nlm.nih.gov/articles/PMC4294279/
Inflammatory breast cancer (IBC) is a highly metastatic and fatal form of breast cancer. […] In addition, viral infection was also suggested to participate in the etiology of IBC disease. […] Recent studies comparing MicroRNAs (miRNAs) expression profiles in non-IBC, IBC carcinoma tissues, and normal breast tissues found that IBC patients are characterized by five over-expressed miRNAs comprising miR-421, miR-486, miR-503, miR-720, and miR-1303. […] The involvement of viral infection in IBC was suggested by Pogo and colleagues when they detected HMTV (MMTV-related virus) in 71% of IBC cases compared to 40% of non-IBC cases in American patients. […] The unique phenotype of IBC exhibits properties associated with HCMV infection including secretions of cytokines and proteases that induce cellular migration, angiogenesis and activation of NF-B signaling pathway, a specific pathway found to be induced by HCMV infection.
#49 Inflammatory breast cancer: New factors contribute to disease etiology: A review
https://pmc.ncbi.nlm.nih.gov/articles/PMC4294279/
Inflammatory breast cancer (IBC) is a highly metastatic and fatal form of breast cancer. […] In addition, viral infection was also suggested to participate in the etiology of IBC disease. […] Recent studies comparing MicroRNAs (miRNAs) expression profiles in non-IBC, IBC carcinoma tissues, and normal breast tissues found that IBC patients are characterized by five over-expressed miRNAs comprising miR-421, miR-486, miR-503, miR-720, and miR-1303. […] The involvement of viral infection in IBC was suggested by Pogo and colleagues when they detected HMTV (MMTV-related virus) in 71% of IBC cases compared to 40% of non-IBC cases in American patients. […] The unique phenotype of IBC exhibits properties associated with HCMV infection including secretions of cytokines and proteases that induce cellular migration, angiogenesis and activation of NF-B signaling pathway, a specific pathway found to be induced by HCMV infection.
#50 Inflammatory breast cancer: New factors contribute to disease etiology: A review
https://pmc.ncbi.nlm.nih.gov/articles/PMC4294279/
We screened for HCMV infection in non-IBC versus IBC patients. […] Our results revealed that HCMV-DNA was detected in cancer tissues of IBC and not in adjacent non-cancer tissues, the results were statistically significant compared to non-IBC patients group. […] Thus we demonstrated for the first time that HCMV infection may be associated with the etiology and the progression of IBC versus non-IBC.
#51 Inflammatory Breast Cancer: Causes, Symptoms, Diagnosis & Treatment
https://www.ganeshdiagnostic.com/blog/inflammatory-breast-cancer-causes-symptoms-diagnosis-and-treatment
Inflammatory breast cancer (IBC) is an occasional and assertive variety of breast cancer that accounts for about 1-5% of all breast cancer cases. […] The reasons for inflammatory breast cancers (IBC) are no longer completely understood. […] Genetic elements play a position in the improvement of IBC. […] Environmental and way of life elements can also additionally contribute to the improvement of IBC. […] Hormone alternative remedy (HRT) may additionally extend the threat of breast cancer, though the affiliation between HRT and IBC is no longer clear. […] In addition to these factors, IBC has been linked to continual infection in the breast tissue. […] Chronic irritation can motivate modifications w in the cells of the breast tissue, increasing the chance of most cancer development.
#52 Importance of hereditary and selected environmental risk factors in the etiology of inflammatory breast cancer: a case-comparison study | BMC Cancer | Full Text
https://bmccancer.biomedcentral.com/articles/10.1186/s12885-016-2369-z
Our findings of multiple-case inflammatory and non-inflammatory breast cancer families may further reflect aggregation of genetic factors and gene-environment interactions predisposing to both types of breast cancer. […] Our findings that oral contraceptive use and regular alcohol consumption may increase the risk of IBC are noteworthy due to modifiable nature of these potential risk factors. […] The role of inflammatory processes in IBC development is not known. […] Our results indicate that a proportion of IBC cases occur in the context of familial breast cancer which may be explained by aggregation of common hereditary factors and/or shared environmental risk factors predisposing to both inflammatory and non-inflammatory breast cancer in these families.
#53 Variations in Risk Factors Suggest Distinct Etiology for Inflammatory Breast Cancer – The ASCO Post
https://ascopost.com/issues/november-15-2013/variations-in-risk-factors-suggest-distinct-etiology-for-inflammatory-breast-cancer/
Varying risk factor associations between inflammatory and noninflammatory breast cancer suggest a distinct etiology for inflammatory breast cancer, according to a study in the Journal of the National Cancer Institute. […] High body mass index was shown to increase risk of inflammatory breast cancer irrespective of menopausal status and estrogen receptor (ER) expression, the researchers reported. […] Notably, overweight and obesity statuses were associated with increased inflammatory breast cancer risk regardless of the internal hormonal milieu or the ER status of the tumors, the researchers commented. […] According to an editorial accompanying the article, These findings show conclusively that obesity is a strong risk factor for inflammatory breast cancer, and they are in stark contrast with the far lower rate ratios for the association of obesity with other breast cancer types, which ranged from 1.02 to 1.36. This finding supports the idea that inflammatory breast cancer is a distinct epidemiologic entity, in addition to being a distinct clinicopathologic entity, wrote the editorialists.
#54 What is Inflammatory Breast Cancer? Symptoms, Risk Factors & Treatments | MD Anderson Cancer Center
https://www.mdanderson.org/cancer-types/inflammatory-breast-cancer.html
Inflammatory breast cancer (IBC) is a rare, aggressive form of breast cancer. Instead of forming a lump, the disease causes the affected breast to become swollen, red and tender, often in a matter of days or weeks. […] These symptoms are not caused by inflammation. Instead, they are caused by cancer cells blocking lymph vessels in the skin and soft tissue. […] Like more common forms of breast cancer, IBC can be divided into three molecular subtypes that can fuel the cancer’s growth and spread: HER2-positive, hormone receptor positive, and triple-negative. Compared to non-inflammatory breast cancer, IBC is more often HER2-positive or triple-negative. […] The risk factors for inflammatory breast cancer are the same for other breast cancers. […] Specific gene mutations increase the risk of developing cancer. These include BRCA1 and BRCA2 mutations.
#55 What is Inflammatory Breast Cancer? Symptoms, Risk Factors & Treatments | MD Anderson Cancer Center
https://www.mdanderson.org/cancer-types/inflammatory-breast-cancer.html
Inflammatory breast cancer (IBC) is a rare, aggressive form of breast cancer. Instead of forming a lump, the disease causes the affected breast to become swollen, red and tender, often in a matter of days or weeks. […] These symptoms are not caused by inflammation. Instead, they are caused by cancer cells blocking lymph vessels in the skin and soft tissue. […] Like more common forms of breast cancer, IBC can be divided into three molecular subtypes that can fuel the cancer’s growth and spread: HER2-positive, hormone receptor positive, and triple-negative. Compared to non-inflammatory breast cancer, IBC is more often HER2-positive or triple-negative. […] The risk factors for inflammatory breast cancer are the same for other breast cancers. […] Specific gene mutations increase the risk of developing cancer. These include BRCA1 and BRCA2 mutations.
#56 SABCS 2023: Inflammatory Breast Cancer: Clinical Challenges, Evolving Concepts, and Novel Treatments – Breast Cancer Action
https://www.bcaction.org/inflammatory-breast-cancer-clinical-challenges-evolving-concepts-and-novel-treatments/
IBC is aggressive and rare (only 24% of breast cancer diagnoses are IBC), but its responsible for up to 10% of breast cancer-related deaths. […] Risk of developing IBC involves the same factors as non-IBC: age, family history, early menstruation, no childbirth, and previous breast cancer diagnoses. Risk also includes previous radiation therapy, obesity, and dense breast tissue. Currently there are no gene mutations associated specifically with IBC. […] We do know that a high proportion of IBC cases are triple negative or HER2 positive. […] A body mass index of 25 or more is also associated with IBC. […] The overrepresentation of HER2 amplification and triple-negative disease within IBC have blurred comparisons between IBC and non-IBC. […] Some studies have shown more frequent mutations in NOTCH (which may drive cancer stem cell-like behavior), DNA repair, and RAS/RAF pathways controlling for subtype, and that IBC does present unique microenvironment interactions, with inflammatory pathways seen on gene expression signatures.
#57 Inflammatory Breast Cancer: Rash, Survival Rate, Treatment, Diagnosis
https://www.medicinenet.com/inflammatory_breast_cancer/article.htm
Inflammatory breast cancer (IBC) is a rare type of breast cancer. The causes and risk factors for inflammatory breast cancer are the same as those for breast cancer in general. Certain genetic mutations and a family history of breast cancer are two of the known risk factors. However, inflammatory breast cancer tends to affect certain women more frequently than others. […] The characteristic inflammatory symptoms in IBC are due to the cancer cells blocking the lymph channels in the breast. […] Inflammatory breast cancer is more common in African American women than in Caucasian women and is diagnosed at an earlier average age. Inflammatory breast cancers often are hormone receptor-negative, meaning that their cells do not have receptors for estrogen or progesterone on the surface. This means that therapies (such as tamoxifen) that target estrogen-driven tumor growth are unlikely to be effective. […] Because inflammatory breast cancers have already spread into the lymphatic vessels and cause symptoms related to this presence in the lymphatic system, all inflammatory breast cancers are stage III or stage IV at diagnosis.
#58 Inflammatory Breast Cancer (IBC) | Susan G. KomenÂ®
https://www.komen.org/breast-cancer/treatment/by-diagnosis/inflammatory-breast-cancer/
Most inflammatory breast cancers are invasive ductal carcinomas. This means they began in the milk ducts. […] Some women are more likely than others to be diagnosed with inflammatory breast cancer, including Black and African American women and women who are obese. […] About one-third of women with inflammatory breast cancer have metastases (metastatic breast cancer) when they are diagnosed. This means the cancer has spread beyond the breast and nearby lymph nodes to other parts of the body such as the bones, lungs, liver or brain. […] Inflammatory breast cancer may first be mistaken for an infection or mastitis because of the redness and swelling, and the frequent lack of a breast lump. […] Some inflammatory breast cancers tend to have worse survival than others. These include inflammatory breast cancers that are HER2-negative and hormone receptor-positive and HER2-negative and hormone receptor-negative (triple negative inflammatory breast cancers). […] Most women with inflammatory breast cancer have lymph node-positive breast cancer when they are diagnosed. This means the axillary lymph nodes (the lymph nodes in the underarm area) contain cancer.
#59 SABCS 2023: Inflammatory Breast Cancer: Clinical Challenges, Evolving Concepts, and Novel Treatments – Breast Cancer Action
https://www.bcaction.org/inflammatory-breast-cancer-clinical-challenges-evolving-concepts-and-novel-treatments/
IBC is aggressive and rare (only 24% of breast cancer diagnoses are IBC), but its responsible for up to 10% of breast cancer-related deaths. […] Risk of developing IBC involves the same factors as non-IBC: age, family history, early menstruation, no childbirth, and previous breast cancer diagnoses. Risk also includes previous radiation therapy, obesity, and dense breast tissue. Currently there are no gene mutations associated specifically with IBC. […] We do know that a high proportion of IBC cases are triple negative or HER2 positive. […] A body mass index of 25 or more is also associated with IBC. […] The overrepresentation of HER2 amplification and triple-negative disease within IBC have blurred comparisons between IBC and non-IBC. […] Some studies have shown more frequent mutations in NOTCH (which may drive cancer stem cell-like behavior), DNA repair, and RAS/RAF pathways controlling for subtype, and that IBC does present unique microenvironment interactions, with inflammatory pathways seen on gene expression signatures.
#60 SABCS 2023: Inflammatory Breast Cancer: Clinical Challenges, Evolving Concepts, and Novel Treatments – Breast Cancer Action
https://www.bcaction.org/inflammatory-breast-cancer-clinical-challenges-evolving-concepts-and-novel-treatments/
Though theres no unique genomic pattern, some studies have shown more frequent mutations in NOTCH (which may drive cancer stem cell-like behavior), DNA repair, and RAS/RAF pathways controlling for subtype, and that IBC does present unique microenvironment interactions, with inflammatory pathways seen on gene expression signatures. […] For years, the standard surgical approach for patients with IBC has been modified radical mastectomy (MRM) (including complete axillary node dissection as a component of MRM) with delayed breast reconstruction. […] In spite of these findings, Dr. Lucci noted a recent IBC-focused survey revealed that a large percentage of clinicians did not follow the MDACC protocols. […] A prospective feasibility trial of SLNB was reported on in 2017 involving 100 IBC patients.
#61 Inflammatory breast cancer – Wikipedia
https://en.wikipedia.org/wiki/Inflammatory_breast_cancer
Inflammatory breast cancer (IBC) is one of the most aggressive types of breast cancer. […] Whether inflammation contributes to the development of this disease remains an area of ongoing research. […] Age distribution and relation to breastfeeding duration is suggestive of the involvement of hormones in the causation of IBC; however, significant differences exist between IBC and other breast cancers. […] Typically, IBC shows low levels of estrogen and progesterone receptor sensitivity, which corresponds with poor outcome. […] Paradoxically, some findings suggest that especially-aggressive phenotypes of IBC are characterised by a high level of NF kappaB target gene expression, which can be, under laboratory conditions, successfully modulated by estrogen, but not by tamoxifen.
#62 Inflammatory Breast Cancer: A Panoramic Overview
https://www.rarediseasesjournal.com/articles/inflammatory-breast-cancer-a-panoramic-overview.html
It has been found that a general physicians misdiagnoses over 90% of women with IBC during their initial evaluation. […] The current diagnostic process is through clinical observation of symptoms. […] Researchers have been attempting create a set of definitive diagnosis criteria that would allow for more accurate diagnosis of IBC. […] Recent studies describe low expression of TGF in IBC patients, which may promote cohesive invasion of IBC cells.
#63 Inflammatory Breast Cancer | Diagnosis and Treatment | University of Michigan Rogel Cancer Center
https://www.rogelcancercenter.org/breast-cancer/inflammatory-breast-cancer
Inflammatory breast cancer is a rare and aggressive form of breast cancer. Its called inflammatory because the cancer cells block lymph vessels in the skin. This causes the breast to look swollen and red, or inflamed. […] In most cases of inflammatory cancer, the type of cancer cells blocking the lymph vessels are invasive ductal carcinomas. This means they developed from the cells lining the milk ducts of the breast and then spread beyond the ducts. […] Inflammatory breast cancer spreads quickly, often in a matter of weeks or months. […] Inflammatory breast cancer is more common in obese women than in women of normal weight. […] Inflammatory breast cancer can occur in men, but usually at an older age than in women. […] Inflammatory breast cancer is generally treated first with chemotherapy to help shrink the tumor, then with surgery to remove the tumor, followed by radiation therapy and potentially additional targeted medical therapy. This approach to treatment is called a multimodal approach. Studies have found that women with inflammatory breast cancer who are treated with a multimodal approach have better responses to therapy and longer survival.
#64 Inflammatory Breast Cancer: Symptoms, Treatment, Research | Breast Cancer Research Foundation
https://www.bcrf.org/about-breast-cancer/inflammatory-breast-cancer/
Inflammatory breast cancer is different from other breast cancers in several key ways. […] Because it’s difficult to detect early by mammograms and other imaging techniques, inflammatory breast cancer is often diagnosed at a locally advanced stage (usually at least stage 3) because breast cancer cells have grown into the skin. […] For about one-third of patients at diagnosis, their IBC is already stage 4/metastatic, having spread to distant parts of the body. […] Since inflammatory breast cancer has, by definition, reached lymph vessels and has caused changes in the skin, it’s likely already spreading, making it a challenge to treat. […] As researchers learn more about inflammatory breast cancer, more potential strategies will emerge to improve patient outcomes.
#65 Inflammatory Breast Cancer – Diagnosis & Disease Information
https://www.cancertherapyadvisor.com/ddi/inflammatory-breast-cancer/
Approximately 1% to 5% of breast cancers diagnosed are IBC, and most of these cases originate as invasive ductal carcinomas rather than lobular carcinomas. […] Having HR-negative breast tumors increases the risk for IBC. […] Due to the often advanced stage at diagnosis of stage III or higher, IBC has an overall worse prognosis compared with other breast cancers. […] Factors that are associated with worse prognosis among patients with IBC include: HR-negative (estrogen or progesterone receptor) cancers; more than 4 lymph nodes involved at diagnosis; and lack of response to neoadjuvant chemotherapy (administered before surgery). […] Identifying IBC as early as possible is necessary to initiate a treatment regimen to sufficiently control the disease. […] Approximately one-third of patients with IBC have stage IV (metastatic) disease at diagnosis.
#66 Inflammatory breast cancer: Clinical features and treatment – UpToDate
https://www.uptodate.com/contents/inflammatory-breast-cancer-clinical-features-and-treatment
Inflammatory breast cancer (IBC) is a rare and aggressive form of breast cancer, characterized by diffuse dermatologic erythema and edema (peau d’orange). […] In the United States, its incidence appears to be increasing, particularly among White patients. […] Data on risk factors are limited and inconclusive. […] Patients with inflammatory breast cancer (IBC) typically present with breast pain or a rapidly growing, self-diagnosed breast lump. […] IBC tends to have a higher preponderance of visceral metastases compared with other forms of breast cancer due to earlier and more aggressive hematogenous spread. […] The diagnosis of inflammatory breast cancer (IBC) is based upon the characteristic clinical presentation and the presence of invasive carcinoma on breast core needle biopsy.
#67 Inflammatory Breast Cancer (IBC) | Susan G. KomenÂ®
https://www.komen.org/breast-cancer/treatment/by-diagnosis/inflammatory-breast-cancer/
Most inflammatory breast cancers are invasive ductal carcinomas. This means they began in the milk ducts. […] Some women are more likely than others to be diagnosed with inflammatory breast cancer, including Black and African American women and women who are obese. […] About one-third of women with inflammatory breast cancer have metastases (metastatic breast cancer) when they are diagnosed. This means the cancer has spread beyond the breast and nearby lymph nodes to other parts of the body such as the bones, lungs, liver or brain. […] Inflammatory breast cancer may first be mistaken for an infection or mastitis because of the redness and swelling, and the frequent lack of a breast lump. […] Some inflammatory breast cancers tend to have worse survival than others. These include inflammatory breast cancers that are HER2-negative and hormone receptor-positive and HER2-negative and hormone receptor-negative (triple negative inflammatory breast cancers). […] Most women with inflammatory breast cancer have lymph node-positive breast cancer when they are diagnosed. This means the axillary lymph nodes (the lymph nodes in the underarm area) contain cancer.
#68 Inflammatory Breast Cancer: A Panoramic Overview
https://www.rarediseasesjournal.com/articles/inflammatory-breast-cancer-a-panoramic-overview.html
Inflammatory breast cancer (IBC) is a unique breast cancer with a highly virulent course and low 5- and 10-year survival rates. […] Although IBC is estimated to account for 1-5% of breast cancer annually it the United States, it is thought to account for nearly 10% of breast cancer deaths. […] The potential for inaccurate diagnosis and misclassification in cases of IBC is increased by many factors. […] The current consensus in the field is that IBC is not only phenotypically different, but also molecularly different from other forms of breast cancer. […] The discovery that lymphatic invasion and distinct metastasis occur during initial presentation led to the thinking of IBC as a systemic disease, and not a locally advanced cancer. […] There are several discreet risk factors that have been established for IBC.
#69 Inflammatory Breast Cancer: A Panoramic Overview
https://www.rarediseasesjournal.com/articles/inflammatory-breast-cancer-a-panoramic-overview.html
It has been found that a general physicians misdiagnoses over 90% of women with IBC during their initial evaluation. […] The current diagnostic process is through clinical observation of symptoms. […] Researchers have been attempting create a set of definitive diagnosis criteria that would allow for more accurate diagnosis of IBC. […] Recent studies describe low expression of TGF in IBC patients, which may promote cohesive invasion of IBC cells.
#70 Inflammatory breast cancer | Breast Cancer Now
https://breastcancernow.org/about-breast-cancer/diagnosis/types-of-breast-cancer/inflammatory-breast-cancer/
Inflammatory breast cancer is a rare, fast-growing type of breast cancer. […] This is caused by the breast cancer cells blocking the tiny lymph vessels in the breast and the skin. […] Inflammatory breast cancer is sometimes difficult to diagnose. This is because the symptoms are similar to some benign (not cancer) conditions such as a breast infection (mastitis) or a breast abscess. […] Because inflammatory breast cancer can develop quickly, treatment is usually started as soon as possible. […] Chemotherapy destroys cancer cells by affecting their ability to divide and grow. […] Chemotherapy is usually the first treatment recommended for inflammatory breast cancer, before any surgery. […] Bisphosphonates are a group of drugs that can reduce the risk of breast cancer spreading in women who have been through the menopause. […] Studies into treatments for inflammatory breast cancer are ongoing.
#71 Breast Rash | National Breast Cancer FoundationNational Breast Cancer Foundation logoNational Breast Cancer Foundation logo
https://nbcf.org.au/about-breast-cancer/detection-and-awareness/breast-rashes/
Many of these symptoms are similar to a breast infection or inflammation (such as mastitis). Because these conditions occur more frequently than IBC, your doctor may initially prescribe antibiotics if they suspect that you have an infection. However, if your symptoms do not improve, your doctor may consider other more serious causes, such as IBC, and more tests may be recommended to evaluate your symptoms. […] Most people diagnosed with inflammatory breast cancer will have a combination of different therapies. Treatment options include chemotherapy, breast surgery, radiotherapy, targeted therapies and hormonal therapies. The order in which the treatments are given may vary, and the treatment plan may be adjusted depending on how the cancer responds.
#72 Inflammatory breast cancer: Clinical features and treatment – UpToDate
https://www.uptodate.com/contents/inflammatory-breast-cancer-clinical-features-and-treatment
Inflammatory breast cancer (IBC) is a rare and aggressive form of breast cancer, characterized by diffuse dermatologic erythema and edema (peau d’orange). […] In the United States, its incidence appears to be increasing, particularly among White patients. […] Data on risk factors are limited and inconclusive. […] Patients with inflammatory breast cancer (IBC) typically present with breast pain or a rapidly growing, self-diagnosed breast lump. […] IBC tends to have a higher preponderance of visceral metastases compared with other forms of breast cancer due to earlier and more aggressive hematogenous spread. […] The diagnosis of inflammatory breast cancer (IBC) is based upon the characteristic clinical presentation and the presence of invasive carcinoma on breast core needle biopsy.
#73 Inflammatory breast cancer: Clinical features and treatment – UpToDate
https://www.uptodate.com/contents/inflammatory-breast-cancer-clinical-features-and-treatment
The initial evaluation focuses on establishing a diagnosis of invasive breast cancer, with subsequent evaluations to confirm histology and assess the extent of involvement. […] IBC is designated as T4d in the American Joint Committee on Cancer (AJCC) Tumor, Node, Metastasis (TNM) staging system. […] The role of imaging studies in monitoring response to therapy is discussed separately. […] Inflammatory breast cancer (IBC) is associated with a particularly poor prognosis and high risk of early recurrence, although with proper primary and adjuvant therapies, the survival rate is much higher than in the past. […] Poor prognostic features include triple-negative receptor status, hormone receptor-positive/human epidermal growth factor receptor 2 (HER2)-negative status, four or more involved lymph nodes prior to therapy, and lack of response to neoadjuvant chemotherapy. […] The adoption of neoadjuvant chemotherapy has improved outcomes for IBC.
#74 Inflammatory breast cancer: Clinical features and treatment – UpToDate
https://www.uptodate.com/contents/inflammatory-breast-cancer-clinical-features-and-treatment
The initial evaluation focuses on establishing a diagnosis of invasive breast cancer, with subsequent evaluations to confirm histology and assess the extent of involvement. […] IBC is designated as T4d in the American Joint Committee on Cancer (AJCC) Tumor, Node, Metastasis (TNM) staging system. […] The role of imaging studies in monitoring response to therapy is discussed separately. […] Inflammatory breast cancer (IBC) is associated with a particularly poor prognosis and high risk of early recurrence, although with proper primary and adjuvant therapies, the survival rate is much higher than in the past. […] Poor prognostic features include triple-negative receptor status, hormone receptor-positive/human epidermal growth factor receptor 2 (HER2)-negative status, four or more involved lymph nodes prior to therapy, and lack of response to neoadjuvant chemotherapy. […] The adoption of neoadjuvant chemotherapy has improved outcomes for IBC.
#75 Inflammatory Breast Cancer | Diagnosis and Treatment | University of Michigan Rogel Cancer Center
https://www.rogelcancercenter.org/breast-cancer/inflammatory-breast-cancer
Inflammatory breast cancer is a rare and aggressive form of breast cancer. Its called inflammatory because the cancer cells block lymph vessels in the skin. This causes the breast to look swollen and red, or inflamed. […] In most cases of inflammatory cancer, the type of cancer cells blocking the lymph vessels are invasive ductal carcinomas. This means they developed from the cells lining the milk ducts of the breast and then spread beyond the ducts. […] Inflammatory breast cancer spreads quickly, often in a matter of weeks or months. […] Inflammatory breast cancer is more common in obese women than in women of normal weight. […] Inflammatory breast cancer can occur in men, but usually at an older age than in women. […] Inflammatory breast cancer is generally treated first with chemotherapy to help shrink the tumor, then with surgery to remove the tumor, followed by radiation therapy and potentially additional targeted medical therapy. This approach to treatment is called a multimodal approach. Studies have found that women with inflammatory breast cancer who are treated with a multimodal approach have better responses to therapy and longer survival.
#76 Inflammatory Breast Cancer – NCI
https://www.cancer.gov/types/breast/ibc-fact-sheet
Proper diagnosis and staging of inflammatory breast cancer helps doctors develop the best treatment plan and estimate the likely outcome of the disease. […] Inflammatory breast cancer is generally treated first with systemic chemotherapy to help shrink the tumor, then with surgery to remove the tumor, followed by radiation therapy. […] Because inflammatory breast cancer usually develops quickly and spreads aggressively to other parts of the body, women diagnosed with this disease, in general, do not survive as long as women diagnosed with other types of breast cancer. […] Ongoing research, especially at the molecular level, will increase our understanding of how inflammatory breast cancer begins and progresses.
#77 What is inflammatory breast cancer (IBC)? | MD Anderson Cancer Center
https://www.mdanderson.org/cancerwise/9-questions-about-inflammatory-breast-cancer–answered.h00-159306990.html
Risk factors that may influence IBC include: race: Black women have a higher incidence of IBC, high body weight: can increase your risk, breastfeeding: reduces risk, age at first pregnancy: being younger may increase your risk. […] Yes. Although IBC can happen at any age, IBC is more common among women who: are under the age of 40, have high body weight, have Black ancestry. […] Development seems to be influenced by the normal changes that take place in breast tissue after childbirth (from dormancy to active milk production and back again) and that is actively being studied. […] Inflammatory breast cancer has specific features that drive progression, resistance and the migration of cancer cells, so it has a high rate of spreading and recurrence. […] Inflammatory breast cancer is not a disease for diluting therapies or using less rigorous methods to try to reduce side effects.
#78 Inflammatory breast cancer: Clinical features and treatment – UpToDate
https://www.uptodate.com/contents/inflammatory-breast-cancer-clinical-features-and-treatment
The initial evaluation focuses on establishing a diagnosis of invasive breast cancer, with subsequent evaluations to confirm histology and assess the extent of involvement. […] IBC is designated as T4d in the American Joint Committee on Cancer (AJCC) Tumor, Node, Metastasis (TNM) staging system. […] The role of imaging studies in monitoring response to therapy is discussed separately. […] Inflammatory breast cancer (IBC) is associated with a particularly poor prognosis and high risk of early recurrence, although with proper primary and adjuvant therapies, the survival rate is much higher than in the past. […] Poor prognostic features include triple-negative receptor status, hormone receptor-positive/human epidermal growth factor receptor 2 (HER2)-negative status, four or more involved lymph nodes prior to therapy, and lack of response to neoadjuvant chemotherapy. […] The adoption of neoadjuvant chemotherapy has improved outcomes for IBC.
#79 SABCS 2023: Inflammatory Breast Cancer: Clinical Challenges, Evolving Concepts, and Novel Treatments – Breast Cancer Action
https://www.bcaction.org/inflammatory-breast-cancer-clinical-challenges-evolving-concepts-and-novel-treatments/
Dr. Lucci concluded that there is no clear data to support the idea that it is safe or accurate to perform SLNB in IBC patients. […] Citing four studies, he concluded there is not clear data to support the safety of IR. […] IBC is an aggressive disease, with a historically reported five-year survival rate around 40%. But according to MDACC, advances in care are helping more patients live longer. Recent studies have shown that with the right treatment, IBCs five-year survival rate is closer to 70% for stage III patients, and up to 50% for newly diagnosed stage IV patients.
#80 Inflammatory breast cancer: Clinical features and treatment – UpToDate
https://www.uptodate.com/contents/inflammatory-breast-cancer-clinical-features-and-treatment
The initial evaluation focuses on establishing a diagnosis of invasive breast cancer, with subsequent evaluations to confirm histology and assess the extent of involvement. […] IBC is designated as T4d in the American Joint Committee on Cancer (AJCC) Tumor, Node, Metastasis (TNM) staging system. […] The role of imaging studies in monitoring response to therapy is discussed separately. […] Inflammatory breast cancer (IBC) is associated with a particularly poor prognosis and high risk of early recurrence, although with proper primary and adjuvant therapies, the survival rate is much higher than in the past. […] Poor prognostic features include triple-negative receptor status, hormone receptor-positive/human epidermal growth factor receptor 2 (HER2)-negative status, four or more involved lymph nodes prior to therapy, and lack of response to neoadjuvant chemotherapy. […] The adoption of neoadjuvant chemotherapy has improved outcomes for IBC.
#81 Inflammatory Breast Cancer – Diagnosis & Disease Information
https://www.cancertherapyadvisor.com/ddi/inflammatory-breast-cancer/
Approximately 1% to 5% of breast cancers diagnosed are IBC, and most of these cases originate as invasive ductal carcinomas rather than lobular carcinomas. […] Having HR-negative breast tumors increases the risk for IBC. […] Due to the often advanced stage at diagnosis of stage III or higher, IBC has an overall worse prognosis compared with other breast cancers. […] Factors that are associated with worse prognosis among patients with IBC include: HR-negative (estrogen or progesterone receptor) cancers; more than 4 lymph nodes involved at diagnosis; and lack of response to neoadjuvant chemotherapy (administered before surgery). […] Identifying IBC as early as possible is necessary to initiate a treatment regimen to sufficiently control the disease. […] Approximately one-third of patients with IBC have stage IV (metastatic) disease at diagnosis.
#82 Inflammatory Breast Cancer – NCI
https://www.cancer.gov/types/breast/ibc-fact-sheet
Proper diagnosis and staging of inflammatory breast cancer helps doctors develop the best treatment plan and estimate the likely outcome of the disease. […] Inflammatory breast cancer is generally treated first with systemic chemotherapy to help shrink the tumor, then with surgery to remove the tumor, followed by radiation therapy. […] Because inflammatory breast cancer usually develops quickly and spreads aggressively to other parts of the body, women diagnosed with this disease, in general, do not survive as long as women diagnosed with other types of breast cancer. […] Ongoing research, especially at the molecular level, will increase our understanding of how inflammatory breast cancer begins and progresses.
#83 Inflammatory Breast Cancer – StatPearls – NCBI Bookshelf
https://www.ncbi.nlm.nih.gov/books/NBK564324/
Inflammatory breast cancer (IBC) is a rare subtype of locally advanced breast cancer according to the TNM breast cancer staging system. Despite its low incidence, IBC contributes to 7% of breast cancer caused mortality. […] A high body mass index is an independent risk factor for inflammatory breast cancer. Possible risk factors that need further investigation are viral infections and chronic inflammation, younger age at first live birth, smoking, and breastfeeding. […] Inherited genetic mutations and family history have demonstrated no association.
#84 Inflammatory Breast Cancer: A Panoramic Overview
https://www.rarediseasesjournal.com/articles/inflammatory-breast-cancer-a-panoramic-overview.html
It has been found that a general physicians misdiagnoses over 90% of women with IBC during their initial evaluation. […] The current diagnostic process is through clinical observation of symptoms. […] Researchers have been attempting create a set of definitive diagnosis criteria that would allow for more accurate diagnosis of IBC. […] Recent studies describe low expression of TGF in IBC patients, which may promote cohesive invasion of IBC cells.
#85 Inflammatory Breast Cancer: Symptoms, Treatment, Research | Breast Cancer Research Foundation
https://www.bcrf.org/about-breast-cancer/inflammatory-breast-cancer/
Inflammatory breast cancer is different from other breast cancers in several key ways. […] Because it’s difficult to detect early by mammograms and other imaging techniques, inflammatory breast cancer is often diagnosed at a locally advanced stage (usually at least stage 3) because breast cancer cells have grown into the skin. […] For about one-third of patients at diagnosis, their IBC is already stage 4/metastatic, having spread to distant parts of the body. […] Since inflammatory breast cancer has, by definition, reached lymph vessels and has caused changes in the skin, it’s likely already spreading, making it a challenge to treat. […] As researchers learn more about inflammatory breast cancer, more potential strategies will emerge to improve patient outcomes.
#86 SABCS 2023: Inflammatory Breast Cancer: Clinical Challenges, Evolving Concepts, and Novel Treatments – Breast Cancer Action
https://www.bcaction.org/inflammatory-breast-cancer-clinical-challenges-evolving-concepts-and-novel-treatments/
Though theres no unique genomic pattern, some studies have shown more frequent mutations in NOTCH (which may drive cancer stem cell-like behavior), DNA repair, and RAS/RAF pathways controlling for subtype, and that IBC does present unique microenvironment interactions, with inflammatory pathways seen on gene expression signatures. […] For years, the standard surgical approach for patients with IBC has been modified radical mastectomy (MRM) (including complete axillary node dissection as a component of MRM) with delayed breast reconstruction. […] In spite of these findings, Dr. Lucci noted a recent IBC-focused survey revealed that a large percentage of clinicians did not follow the MDACC protocols. […] A prospective feasibility trial of SLNB was reported on in 2017 involving 100 IBC patients.
#87 Inflammatory Breast Cancer – NCI
https://www.cancer.gov/types/breast/ibc-fact-sheet
Proper diagnosis and staging of inflammatory breast cancer helps doctors develop the best treatment plan and estimate the likely outcome of the disease. […] Inflammatory breast cancer is generally treated first with systemic chemotherapy to help shrink the tumor, then with surgery to remove the tumor, followed by radiation therapy. […] Because inflammatory breast cancer usually develops quickly and spreads aggressively to other parts of the body, women diagnosed with this disease, in general, do not survive as long as women diagnosed with other types of breast cancer. […] Ongoing research, especially at the molecular level, will increase our understanding of how inflammatory breast cancer begins and progresses.