Wrzodziejące zapalenie jelita grubego
Diagnostyka i diagnoza

Wrzodziejące zapalenie jelita grubego (WZJG) to przewlekła choroba zapalna charakteryzująca się ciągłym zapaleniem i owrzodzeniami błony śluzowej okrężnicy, diagnozowana na podstawie kompleksowej oceny klinicznej, laboratoryjnej, endoskopowej i histopatologicznej. Kluczowe objawy to przewlekła biegunka (>4 tygodni), często z krwią i śluzem, bolesne parcie na stolec (tenesmus) oraz bóle brzucha. Badania laboratoryjne wykazują podwyższone markery stanu zapalnego (CRP, OB), niedokrwistość (niski poziom hemoglobiny), hipoproteinemię (obniżony poziom albuminy) oraz zaburzenia elektrolitowe. Diagnostyka endoskopowa, ze szczególnym uwzględnieniem kolonoskopii, umożliwia ocenę rozległości i aktywności choroby, typowo wykazując ciągłe zapalenie rozpoczynające się od odbytnicy, utratę rysunku naczyniowego, owrzodzenia i pseudopolipy. Biopsje z co najmniej pięciu miejsc potwierdzają rozpoznanie poprzez wykazanie aktywnego i przewlekłego zapalenia z charakterystycznym ciągłym naciekiem, odróżniając WZJG od choroby Leśniowskiego-Crohna. Badania kału, w tym kalprotektyna, pomagają wykluczyć infekcje i ocenić stan zapalny.

Diagnostyka wrzodziejącego zapalenia jelita grubego

Wrzodziejące zapalenie jelita grubego (WZJG) to przewlekła choroba zapalna jelit, charakteryzująca się nawracającym zapaleniem i owrzodzeniami błony śluzowej okrężnicy. Prawidłowa diagnoza ma kluczowe znaczenie dla wdrożenia odpowiedniego leczenia i monitorowania przebiegu choroby. Diagnostyka WZJG wymaga kompleksowego podejścia, obejmującego badania endoskopowe, laboratoryjne, obrazowe oraz ocenę histopatologiczną.12

Wywiad lekarski i badanie przedmiotowe

Pierwszym krokiem w procesie diagnostycznym jest zebranie szczegółowego wywiadu medycznego i przeprowadzenie badania przedmiotowego. Lekarz zbiera informacje dotyczące objawów choroby, takich jak biegunka (często z domieszką krwi), śluz w stolcu, pilna potrzeba wypróżnienia, bolesne parcie na stolec (tenesmus) oraz bóle brzucha. Ważna jest ocena częstości wypróżnień, nasilenia krwawienia, obecności nocnych wypróżnień oraz stopnia utraty masy ciała, co pomaga określić ciężkość choroby.12

W badaniu przedmiotowym lekarz ocenia ogólny stan zdrowia pacjenta, sprawdza obecność bladości skóry i zmian w kącikach ust (mogących świadczyć o niedokrwistości), bada brzuch pod kątem tkliwości i wzdęcia, a także ocenia obecność pozajelitowych manifestacji choroby, takich jak zmiany skórne, objawy stawowe czy oczne.12

Badania laboratoryjne

Badania laboratoryjne, choć nie są swoiste dla WZJG i nie mogą samodzielnie potwierdzić diagnozy, dostarczają istotnych informacji o stanie zapalnym, wykluczają inne przyczyny objawów oraz pomagają ocenić ogólny stan zdrowia pacjenta.1

Badania krwi

W diagnostyce WZJG rutynowo wykonuje się następujące badania krwi:

  • Morfologia krwi – może wykazać niedokrwistość (niski poziom hemoglobiny), która może być spowodowana przewlekłym krwawieniem z jelit. Podwyższona liczba białych krwinek może wskazywać na proces zapalny.12
  • Markery stanu zapalnego – takie jak białko C-reaktywne (CRP) i odczyn Biernackiego (OB). Podwyższony poziom CRP i przyspieszone OB mogą wskazywać na aktywny stan zapalny.12
  • Białko albumina – niski poziom albuminy może wskazywać na przewlekły stan zapalny i niedożywienie.1
  • Poziom elektrolitów – dla oceny zaburzeń elektrolitowych, które mogą wystąpić w przebiegu przewlekłej biegunki.1
  • Próby wątrobowe – dla wykluczenia współistniejących chorób wątroby, które mogą być związane z WZJG.1
  • Badania żelaza, witaminy B12 i kwasu foliowego – do oceny niedoborów, które mogą występować w przebiegu choroby.1

Warto zauważyć, że w niektórych przypadkach oznaczane są również przeciwciała przeciwko cytoplazmie neutrofilów (pANCA) i przeciwciała przeciwko Saccharomyces cerevisiae (ASCA). Przeciwciała pANCA są obecne u około 50-60% pacjentów z WZJG, natomiast ASCA częściej występuje w chorobie Leśniowskiego-Crohna. Kombinacja obecności pANCA i braku ASCA może pomóc w różnicowaniu WZJG od choroby Leśniowskiego-Crohna, jednak ze względu na ograniczoną czułość i swoistość, testy te nie są zalecane do rutynowego stosowania w diagnostyce.123

Badania kału

Badania kału są istotnym elementem diagnostyki WZJG, pomagającym wykluczyć inne przyczyny objawów i ocenić stan zapalny jelita:1

  • Posiew kału – w celu wykluczenia zakażeń bakteryjnych, wirusowych lub pasożytniczych, które mogą powodować podobne objawy.12
  • Kał na obecność toksyny Clostridioides difficile – dla wykluczenia rzekomobłoniastego zapalenia jelita grubego.1
  • Kalprotektyna kałowa – jest biomarkerem neutrofilowego zapalenia jelit. Podwyższony poziom kalprotektyny w kale jest pomocny w różnicowaniu zapalnych chorób jelit od schorzeń czynnościowych, takich jak zespół jelita drażliwego. Jest to czuły, nieinwazyjny test, który może zastąpić endoskopię, gdy procedura ta jest niedostępna lub niewykonalna.123
  • Krew utajona w kale – obecność krwi w stolcu może wskazywać na WZJG.1

Badania endoskopowe

Badania endoskopowe z pobraniem materiału do badania histopatologicznego są najważniejszymi procedurami diagnostycznymi w rozpoznawaniu WZJG. Pozwalają na bezpośrednią obserwację zmian zapalnych w jelicie, ocenę ich zasięgu i nasilenia oraz pobranie wycinków do badania mikroskopowego.12

Kolonoskopia

Kolonoskopia jest złotym standardem w diagnostyce WZJG. Podczas tego badania lekarz wprowadza przez odbyt giętki endoskop wyposażony w kamerę, co umożliwia obejrzenie całego jelita grubego, w tym również końcowego odcinka jelita krętego. Kolonoskopia pozwala na:12

  • Ocenę wyglądu błony śluzowej jelita grubego – w WZJG typowo obserwuje się ciągłe zapalenie rozpoczynające się od odbytnicy i rozciągające się proksymalnie, z utratą prawidłowego rysunku naczyniowego, ziarnistą, kruchą błoną śluzową, obecnością owrzodzeń, nadżerek, a czasem pseudopolipów.12
  • Pobranie wycinków do badania histopatologicznego – zaleca się pobranie co najmniej dwóch wycinków z pięciu różnych miejsc, w tym z odbytnicy i dystalnego odcinka jelita krętego.12
  • Określenie zasięgu i ciężkości choroby – co ma kluczowe znaczenie dla decyzji terapeutycznych.1
  • Wykluczenie innych chorób, takich jak choroba Leśniowskiego-Crohna.1

Kolonoskopia jest również wykorzystywana do monitorowania aktywności choroby, oceny skuteczności leczenia oraz do nadzoru onkologicznego u pacjentów z długotrwałym WZJG, którzy mają zwiększone ryzyko rozwoju raka jelita grubego.12

Sigmoidoskopia

Sigmoidoskopia elastyczna to badanie endoskopowe, które obejmuje tylko odbytnicę i esicę (dolną część jelita grubego). Jest ono mniej inwazyjne niż kolonoskopia i może być wykonane:

  • W przypadku łagodnych objawów, gdy lekarz prawdopodobnie rozpocznie leczenie na podstawie uzyskanych wyników.1
  • Gdy jelito jest ciężko zapalne i przeprowadzenie pełnej kolonoskopii mogłoby być niebezpieczne.1
  • Jako badanie wstępne, które w przypadku znalezienia zmian zapalnych może być uzupełnione o pełną kolonoskopię.1

Podobnie jak w przypadku kolonoskopii, podczas sigmoidoskopii można pobrać wycinki do badania histopatologicznego.1

Inne techniki endoskopowe

W ostatnich latach pojawiły się nowe technologie endoskopowe, które mogą poprawić diagnostykę WZJG:

  • Chromoendoskopia – technika pozwalająca na obrazowanie w czasie rzeczywistym przewodu pokarmowego, co umożliwia lepsze wykrywanie nieprawidłowości i ocenę aktywności choroby.1
  • Konfokalna laserowa endomikroskopia (CLE) i endocytoskopia (EC) – dostarczają informacji diagnostycznych na poziomie komórkowym, pozwalając na wykrycie mikroskopowych zmian w błonie śluzowej, które mogą nie być widoczne w tradycyjnej endoskopii.1
  • Endoskopia kapsułkowa – może być zalecana, gdy objawy sugerują problem w jelicie cienkim, ale inne testy, w tym badania krwi, kolonoskopia i górna endoskopia, są nierozstrzygające.1

Badania obrazowe

Badania obrazowe nie są rutynowo zalecane do diagnozowania WZJG, ale mogą być wykorzystywane jako uzupełnienie endoskopii, szczególnie do wykrywania powikłań.1

  • Przeglądowe zdjęcie RTG jamy brzusznej – może być wykonane w przypadku ciężkich objawów, aby wykluczyć poważne powikłania, takie jak perforacja okrężnicy.1
  • Tomografia komputerowa (TK) jamy brzusznej lub miednicy – może być przeprowadzona w przypadku podejrzenia powikłań. TK może również ujawnić, jak duża część okrężnicy jest objęta zapaleniem.12
  • Rezonans magnetyczny (MR) enterografia – to badanie obrazowe niewymagające promieniowania. Daje szczegółowe obrazy jelita cienkiego, co pozwala na zlokalizowanie obszarów zapalenia, krwawienia i innych stanów jelita cienkiego.12
  • Ultrasonografia przezbrzuszna (TUS) – nieinwazyjna metoda, która może być przydatna w diagnostyce i monitorowaniu WZJG. W badaniu USG można ocenić grubość ściany jelita i jej strukturę warstwową. W WZJG, które polega głównie na zapaleniu błony śluzowej, w USG widoczne jest pogrubienie ściany z zachowaną strukturą warstwową, rozpoczynające się od odbytnicy w aktywnej fazie choroby.1

Badanie histopatologiczne

Badanie histopatologiczne wycinków pobranych podczas endoskopii jest niezbędne do potwierdzenia rozpoznania WZJG. W WZJG charakterystyczne zmiany histopatologiczne obejmują:1

  • Aktywne zapalenie, identyfikowane jako obecność uszkodzenia nabłonka z infiltracją neutrofilową nabłonka krypt (cryptitis), ropnie krypt lub naciek neutrofilowy nabłonka powierzchniowego z owrzodzeniem lub bez.1
  • Przewlekłe zapalenie, charakteryzujące się zniekształceniem architektury krypt i przewlekłym naciekiem zapalnym w blaszce właściwej błony śluzowej.1
  • Ciągłe zapalenie, w przeciwieństwie do ogniskowego w przypadku choroby Leśniowskiego-Crohna.1

Najbardziej charakterystycznymi cechami histologicznymi odróżniającymi chorobę Leśniowskiego-Crohna od WZJG są nieciągłe przewlekłe zapalenie, ogniskowe zniekształcenie architektury krypt sąsiadujących z prawidłowymi kryptami oraz obecność ziarniniaków.1

Kryteria diagnostyczne i ocena aktywności choroby

Diagnoza WZJG jest stawiana na podstawie kombinacji objawów klinicznych, wyników badań laboratoryjnych, endoskopowych i histopatologicznych. Kryteria diagnostyczne dla WZJG obejmują:1

  • Przewlekła biegunka trwająca dłużej niż cztery tygodnie
  • Typowe zmiany endoskopowe (np. zapalenie, owrzodzenia, krwawienie, utrata rysunku naczyniowego, tkanka bliznowata)
  • Wykluczenie innych przyczyn zapalenia jelita grubego na podstawie wywiadu, badań laboratoryjnych i biopsji
  • Charakterystyczne zmiany histologiczne w bioptatach

Po postawieniu diagnozy WZJG, lekarz ocenia zasięg i ciężkość choroby, co jest istotne dla planowania leczenia. Do oceny aktywności WZJG stosowanych jest kilka systemów punktacji, z których jednym z najpopularniejszych jest skala Mayo.12

Różnicowanie

Podczas diagnostyki WZJG ważne jest różnicowanie z innymi chorobami, które mogą dawać podobne objawy:1

  • Choroba Leśniowskiego-Crohna – w przeciwieństwie do WZJG, może dotyczyć całego przewodu pokarmowego, a zmiany są nieciągłe i mogą obejmować całą grubość ściany jelita.
  • Zapalenie jelita grubego o podłożu infekcyjnym – spowodowane przez bakterie, wirusy lub pasożyty.
  • Niedokrwienne zapalenie jelita grubego.
  • Zespół jelita drażliwego – funkcjonalne zaburzenie bez cech zapalenia.
  • Rzekomobłoniaste zapalenie jelita grubego – związane z infekcją Clostridioides difficile.
  • Rak jelita grubego.

Dokładne różnicowanie jest kluczowe, ponieważ każda z tych chorób wymaga innego podejścia terapeutycznego.1

Monitorowanie przebiegu choroby

Po zdiagnozowaniu WZJG pacjenci wymagają regularnego monitorowania w celu oceny aktywności choroby, skuteczności leczenia i wczesnego wykrycia powikłań.1

Monitorowanie może obejmować:

  • Regularne badania krwi – do oceny markerów zapalnych, niedokrwistości i niedoborów żywieniowych.1
  • Badanie kalprotektyny w kale – do nieinwazyjnej oceny aktywności zapalnej.1
  • Okresowe badania endoskopowe – dla oceny gojenia błony śluzowej i wykrywania dysplazji.1
  • Nadzór onkologiczny – pacjenci z długotrwałym WZJG (powyżej 8-10 lat) powinni mieć wykonywane kolonoskopie co 1-3 lata ze względu na zwiększone ryzyko rozwoju raka jelita grubego.12

Nowe kierunki w diagnostyce WZJG

Badania nad nowymi metodami diagnostycznymi w WZJG skupiają się na opracowaniu mniej inwazyjnych, bardziej precyzyjnych testów:1

  • Biomarkery krwi – naukowcy zidentyfikowali autoprzeciwciała przeciwko integrinie alfa-v/beta-6, które są często obecne u pacjentów z WZJG, a nie z innymi chorobami jelit. Mogą one służyć jako wiarygodne markery do diagnostyki i pomóc lekarzom w śledzeniu ciężkości choroby.1
  • Testy diagnostyczne oparte na badaniu krwi – w opracowaniu są szybkie, ekonomiczne i dokładne zestawy diagnostyczne do wykrywania WZJG za pomocą prostego badania krwi.1
  • Modele sztucznej inteligencji (AI) – mogą pomóc w przewidywaniu progresji WZJG i zapobieganiu zaostrzeniom choroby w krótkiej i średniej perspektywie. Narzędzia AI mogą potencjalnie zwiększyć efektywność i dokładność diagnostyki endoskopowej i leczenia WZJG.1

Wnioski

Diagnostyka wrzodziejącego zapalenia jelita grubego wymaga kompleksowego podejścia obejmującego szczegółowy wywiad, badanie przedmiotowe, badania laboratoryjne, endoskopowe, obrazowe oraz histopatologiczne. Jedynym sposobem definitywnego rozpoznania WZJG jest endoskopia z biopsją. Wczesna i prawidłowa diagnoza ma kluczowe znaczenie dla wdrożenia odpowiedniego leczenia, co może znacząco wpłynąć na jakość życia pacjenta i zapobiec poważnym powikłaniom. Po postawieniu diagnozy, regularne monitorowanie przebiegu choroby jest niezbędne do oceny skuteczności leczenia i wczesnego wykrycia potencjalnych powikłań.123

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  1. 11.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

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    Ulcerative colitis is one of the two main subtypes of inflammatory bowel disease, along with Crohn’s disease. Understanding the clinical and endoscopic features of ulcerative colitis is critical in achieving a timely diagnosis. An initial evaluation includes assessing clinical symptoms, inflammatory markers, endoscopic findings, and determination of the presence or absence of extraintestinal manifestations. […] Clinical, laboratory, endoscopic, and histopathologic information are used to establish a diagnosis of ulcerative colitis (UC), one of the two main subtypes of inflammatory bowel disease (IBD), along with Crohn’s disease (CD). […] Symptoms such as bloody diarrhea, mucous in the stool, urgency, tenesmus, and abdominal cramping may be consistent with UC. […] On initial presentation, health care providers should assess for the frequency of bowel movements, severity of bleeding, presence of nocturnal bowel movements, and degree of weight loss to help determine disease severity.
  • #1 Diagnosis and Monitoring of Ulcerative Colitis
    https://pmc.ncbi.nlm.nih.gov/articles/PMC9797286/
    Extraintestinal manifestations (EIMs) of UC should also be evaluated at time of index clinical presentation such as fever, joint swelling, cutaneous manifestations, ocular symptoms, or anemia. […] No singular laboratory test is diagnostic for UC. However, checking inflammatory markers can be helpful for prognostication and disease monitoring, although they are nonspecific. […] Fecal calprotectin (FC), a marker of neutrophilic inflammation in the gut, is helpful in distinguishing inflammatory etiologies, such as UC, from noninflammatory causes like irritable bowel syndrome. […] Endoscopy is an important diagnostic tool used to distinguish UC from CD, and other non-IBD-related colitides, evaluate extent of disease, and obtain biopsies. […] Colonoscopy with intubation of the terminal ileum is standard for diagnosis with histologic confirmation.
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    Endoscopic procedures with tissue biopsy are the only way to definitively diagnose ulcerative colitis. Other types of tests can help rule out complications or other forms of inflammatory bowel disease, such as Crohn’s disease. […] To help confirm a diagnosis of ulcerative colitis, one or more of the following tests and procedures may be recommended: […] A healthcare professional may suggest blood tests to check for anemia a condition in which there aren’t enough red blood cells to carry oxygen to the tissues or to check for signs of infection. Markers of inflammation are also sometimes checked. […] White blood cells or certain proteins in stool can suggest ulcerative colitis. A stool sample also can help rule out other conditions, such as infections caused by bacteria, viruses or parasites.
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    Ulcerative colitis is a chronic inflammatory and ulcerative disease arising in the colonic mucosa, characterized most often by bloody diarrhea. […] Diagnosis is by colonoscopy. […] Diagnosis of ulcerative colitis is suggested by typical symptoms and signs, particularly when accompanied by extraintestinal manifestations or a history of previous similar attacks. […] Stool cultures for enteric pathogens should be done, and Entamoeba histolytica should be excluded by examination of fresh stool specimens. […] Sigmoidoscopy should be done; it allows visual confirmation of colitis and permits direct sampling of stool or mucus for culture and microscopic evaluation, as well as biopsy of affected areas. […] Laboratory tests should be done to screen for anemia, hypoalbuminemia, and electrolyte abnormalities.
  • #1 Ulcerative Colitis – Digestive Disorders – Merck Manual Consumer Version
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    Blood tests do not confirm the diagnosis of ulcerative colitis but may reveal that the person has anemia, increased numbers of white blood cells (occurs with inflammation), a low level of the protein albumin, and an elevated erythrocyte sedimentation rate (ESR) or C-reactive protein level, which also indicate active inflammation. A doctor may also do liver tests.
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    Blood tests (also referred to as histology) are used by health care providers (HCPs) to help rule out other potential causes of symptoms, and to decide what other testing is needed to make a diagnosis of inflammatory bowel disease (IBD). There are several different types of tests that are typically used when checking for IBD activity, signs of infection, anemia, nutritional deficiencies and/or other diseases. […] The complete blood count (CBC) is commonly used by HCPs when testing for Crohns and colitis. […] Blood tests are also used to check plasma levels of iron, ferratin, vitamin B12 and folic acid. […] If you have IBD, anemia is an important factor when HCPs test for disease activity. […] The CRP is a protein made in the liver and increases when inflammation is occurring somewhere in the body. High CRP levels may be a sign of anemia, infections and/or chronic disease. Further testing is needed to determine the cause and location of the inflammation. If you’ve been diagnosed with IBD, health care providers typically test for CRP during routine appointments to check for disease activity (gut inflammation) and severity.
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    Ulcerative colitis is a chronic disease with recurrent symptoms and significant morbidity. The diagnosis is made endoscopically. Tests such as perinuclear antineutrophilic cytoplasmic antibodies and anti-Saccharomyces cerevisiae antibodies are promising, but not yet recommended for routine use. […] Colonoscopy or proctosigmoidoscopy and biopsy are the tests of choice to diagnose ulcerative colitis. In one study, endoscopy with biopsy was 99 percent sensitive for colonic pathology in patients with diarrhea. […] A meta-analysis of observational studies to determine the utility of blood tests to detect perinuclear antineutrophilic cytoplasmic antibodies (pANCA) and anti-Saccharomyces cerevisiae antibodies (ASCA) showed that the combination is specific, but not sensitive for diagnosing ulcerative colitis.
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    A CRP level greater than 10 mg/L 1 year after the onset of major colitis predicts an increased risk of requiring surgical intervention. […] To rule out infectious causes, it is important to perform a stool microbiological examination, including testing for C. difficile toxin. […] The ECCO protocol on opportunistic infections in statement 6A notes that patients with ulcerative colitis are at risk of opportunistic infections. […] The ECCO 8A statement notes that the risk of colorectal cancer in ulcerative colitis increases compared with the general population. Risk is associated with disease duration, grade, and more severe or persistent inflammatory activity. […] Simple, accessible laboratory tests are used for the early diagnosis of colorectal cancer, in particular, these include fecal TM2-pyruvate kinase and fecal hemoglobin.
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    Ulcerative colitis is one of the illnesses known as inflammatory bowel disease (IBD). […] A complete medical history and physical examination along with medical tests are used to diagnose ulcerative colitis. The main goal of the tests is to make sure that the disease is ulcerative colitis and not some other kind of disease that causes diarrhea. […] Testing for ulcerative colitis includes the following: Blood tests to check for anemia (low red blood cell count), which can mean bleeding in the colon or rectum. They can also show if there is an increased number of white blood cells, which might mean that there is swelling somewhere in the body. […] Stool cultures tell if there is an infection by a parasite, virus or bacteria. Stool can also be tested for hidden blood that is not seen on the stool.
  • #1 Ulcerative colitis – Diagnosis and treatment – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/ulcerative-colitis/diagnosis-treatment/drc-20353331
    This exam allows a healthcare professional to view the entire colon using a thin, flexible, lighted tube with a camera on the end. During the procedure, the healthcare professional takes samples of tissue for testing in a lab. This is called a biopsy. A tissue sample is necessary to make the diagnosis. […] A medical professional uses a slender, flexible, lighted tube to examine the rectum and sigmoid colon the lower end of the colon. If the colon is severely inflamed, this test may be done instead of a full colonoscopy. […] If symptoms are severe, a standard X-ray of the abdominal area may be done to rule out serious complications, such as a perforated colon. […] A CT scan of the abdomen or pelvis may be performed if a complication is suspected. A CT scan also may reveal how much of the colon is inflamed. […] A healthcare professional may recommend one of these noninvasive tests to exclude any inflammation in the small intestine. These tests are more sensitive for finding inflammation in the bowel than are conventional imaging tests. MR enterography is a radiation-free alternative.
  • #1 Diagnosis and Monitoring of Ulcerative Colitis
    https://pmc.ncbi.nlm.nih.gov/articles/PMC9797286/
    UC has a distinct endoscopic appearance with continuous mucosal inflammation extending proximally from the rectum and may feature granularity, loss of vascular markings, friability, deep ulcerations, and spontaneous bleeding. […] Establishing pretreatment extent of disease is imperative for subsequent management decisions as well as evaluating response to medical therapies. […] As UC is a chronic inflammatory condition limited to the mucosa, pathologic signs of activity and chronicity aid in its diagnosis. Active inflammation is identified as the presence of epithelial injury with neutrophil infiltrating crypt epithelium (cryptitis), crypt abscesses, or neutrophilic infiltration of surface epithelial with or without ulceration. […] Several scoring systems and classifications have been used to risk stratify UC activity and severity. […] Distinguishing CD from UC prior to initiation of therapy can be helpful in determining best treatment options and prognostication, specifically if surgery is warranted, as well as aid in proper disease monitoring given their differing potential complications and natural history.
  • #1 Ulcerative Colitis Workup: Approach Considerations, Serologic Markers, Other Laboratory Studies
    https://emedicine.medscape.com/article/183084-workup
    Endoscopic findings of UC include the following: Loss of vascular pattern, Granular and fragile mucosa, Ulceration, erosions, and/or pseudopolyposis. […] Multiple biopsy samples should be obtained from both inflamed and normal-appearing mucosa. […] Findings on colonoscopy with biopsy confirm a diagnosis. Also, this evaluation is useful for documenting the extent of the disease, for monitoring disease activity, and for surveillance for dysplasia or cancer. […] Histologically, most of the pathology in UC is limited to the mucosa and submucosa. […] Imaging has an important role in the workup of patients with suspected inflammatory bowel disease and in the differentiation of UC and Crohn disease. […] Cross-sectional imaging studies (eg, ultrasonography [US], magnetic resonance imaging [MRI], computed tomography [CT] scanning) are useful for showing the effects of these conditions on the bowel wall.
  • #1 Ulcerative Colitis Workup: Approach Considerations, Serologic Markers, Other Laboratory Studies
    https://emedicine.medscape.com/article/183084-workup
    The diagnosis of ulcerative colitis (UC) is best made with endoscopy and mucosal biopsy for histopathology. Laboratory studies are helpful to exclude other diagnoses and assess the patient’s nutritional status, but serologic markers can assist in the diagnosis of inflammatory bowel disease. […] Colonoscopy can confirm the diagnosis of suspected UC; it is also the technique of choice to assess disease activity in patients with symptomatic colonic Crohn disease or UC. […] As noted, laboratory studies are useful principally for helping to exclude other diagnoses and to assess the patient’s nutritional status. However, serologic markers can assist in the diagnosis of inflammatory bowel disease. […] Once UC is suspected, endoscopy must be performed. Flexible sigmoidoscopy may be performed if the symptoms are mild, and the physician is likely to initiate therapy on the basis of the results obtained. However, most physicians perform a full colonoscopy if inflammation is found with flexible sigmoidoscopy.
  • #1 Ulcerative Colitis | Causes, Symptoms, Diagnosis & Treatment
    https://www.cincinnatichildrens.org/health/u/ulcerative-colitis
    Sigmoidoscopy is a test using a flexible tube with a light and camera lens at the end that is put into the rectum and lower colon (sigmoid colon). It lets the doctor see swelling in the lining of the rectum and lower colon. […] Colonoscopy is a test that uses a long, flexible tube with a light and camera lens at the end. This allows the doctor to examine the lining of the entire colon. […] Biopsy is a tissue sample that is taken for examination and testing in a laboratory. In ulcerative colitis, a biopsy (a small piece of tissue from the lining of the large bowel) is usually done during a sigmoidoscopy or colonoscopy. […] Upper gastrointestinal / GI series is a procedure that examines the stomach and small intestine. Barium is swallowed and then followed through the intestine with an X-ray.
  • #1 Enhancing diagnosis and disease monitoring for ulcerative colitis • healthcare-in-europe.com
    https://healthcare-in-europe.com/en/news/endoscopy-enhance-diagnosis-monitoring-ulcerative-colitis.html
    Confocal laser endomicroscopy (CLE) and endocytoscopy (EC) provide both diagnostic information at the cellular level, allowing for the detection of microscopic changes in the mucosa that may not be visible with traditional endoscopy. […] Patients with long-standing ulcerative colitis, excluding those with limited proctitis, have an increased risk of colorectal cancer as a result of inflammation-induced carcinogenesis. […] Recently, the availability of novel medical therapies and the implementation of improved colonoscopic surveillance have led to a reduction in colitis-associated colorectal cancer. […] As non-invasive biomarkers for colitis-associated colorectal cancer are lacking, colonoscopy remains the mainstay of colitis-associated colorectal cancer risk attenuation. […] The new technology of chromoendoscopy is providing real-time imaging of the gastrointestinal tract, allowing for the detection of abnormalities and the assessment of disease activity.
  • #1 Diagnosing Inflammatory Bowel Disease | NYU Langone Health
    https://nyulangone.org/conditions/inflammatory-bowel-disease/diagnosis
    Endoscopic procedures such as colonoscopy, upper endoscopy, sigmoidoscopy, and capsule endoscopy are key to diagnosing IBD because they provide clear and detailed views of the gastrointestinal tract. […] Gastroenterologists almost always recommend a colonoscopy to diagnose Crohns disease or ulcerative colitis. […] Frequently, a doctor performs biopsies during a colonoscopy, in which he or she removes small tissue samples from the colon and sends them to a laboratory for analysis. […] A flexible sigmoidoscopy is similar to a colonoscopy except the doctor only examines the rectum and lower part of the colon. […] If your symptoms and lab tests suggest that you have Crohns disease, your doctor may recommend an upper endoscopy, also called an esophagogastroduodenoscopy. […] A capsule endoscopy may be recommended if your symptoms indicate you have a problem in the small intestine but other tests including blood tests, colonoscopy, and an upper endoscopy are inconclusive. […] When performed in combination with endoscopic tests, imaging tests such as X-rays, CT scans, and MRI scans give doctors additional information about the gastrointestinal tract. […] Imaging tests can also be used to monitor the gastrointestinal tract and assess how well treatment is working.
  • #1 Ulcerative colitis – Knowledge @ AMBOSS
    https://www.amboss.com/us/knowledge/ulcerative-colitis/
    Diagnosis of ulcerative colitis does not require the measurement of CRP, ESR, or hemoglobin levels but they are used to determine disease severity. […] Hypoalbuminemia and elevated CRP suggest a poor prognosis. […] Endoscopy is the recommended method for diagnosis and disease monitoring. […] Imaging studies are not routinely recommended for diagnosing ulcerative colitis but may be used as an adjunct to endoscopy, particularly for the detection of complications.
  • #1
    https://link.springer.com/article/10.1007/s10396-021-01181-4
    The following are some common features of ulcerative colitis (UC) and Crohn’s disease (CD) on transabdominal ultrasonography (TUS). UC, which consists primarily of mucosal inflammation, is seen on TUS as wall thickening with preserved layer structure continuing from the rectum in the active phase of UC. Inflammation confined to the mucosa is seen as thickening of the mucosal/submucosal layers. When the inflammation becomes severe, the echogenicity of the submucosal layer decreases and the layer structure becomes indistinct. CD, which consists primarily of discontinuous transmural inflammation, shows more pronounced hypoechoic wall thickening than UC at the transmural inflammation. On TUS, the layer structure becomes indistinct and gradually disappears due to the depth of the myriad inflammation during the active phase of CD. It is important to evaluate the changes in wall thickening and layer structure when diagnosing UC and CD with TUS. In addition, diagnostic techniques such as color Doppler and contrast-enhanced ultrasonography, which can be used to assess blood flow, and elastography, which can be used to evaluate stiffness, are also used. Thus, TUS is a noninvasive and convenient modality that shows promise as a useful examination for diagnosis of UC and CD.
  • #1 Diagnostic Procedures for Inflammatory Bowel Disease: Laboratory, Endoscopy, Pathology, Imaging, and Beyond
    https://www.mdpi.com/2075-4418/14/13/1384
    Endoscopic biopsy aids in the diagnosis of IBD and is crucial for assessing the histological activity of the disease, facilitating a thorough evaluation of disease remission, and aiding in the development of treatment strategies. […] A delayed diagnosis is associated with an increased need for surgery and a poor prognosis due to a poor response to drug therapy. […] The diagnostic delay for IBD ranges from 2 months to 8 years. UC tends to have a shorter diagnostic delay than CD, as UC is confined to the colorectum and patients are more likely to present with rectal bleeding, whereas CD symptoms can be vague, leading to a longer diagnostic delay. […] In the diagnostic process of IBD, it is recommended to obtain biopsies from at least two sites out of five designated areas: the right colon, transverse colon, left colon, sigmoid colon, and rectum, during ileocolonoscopy of the terminal ileum and colorectum.
  • #1 Diagnostic Procedures for Inflammatory Bowel Disease: Laboratory, Endoscopy, Pathology, Imaging, and Beyond
    https://www.mdpi.com/2075-4418/14/13/1384
    The most distinguishing histological features of CD compared to UC are discontinuous chronic inflammation, focal crypt architectural distortion adjacent to normal crypts, and the presence of granulomas. […] The presence of non-caseating granulomas favors a diagnosis of CD, although this feature can also be seen in infectious diseases. […] The diagnostic rates for ITB using tissue acid-fast bacilli (AFB), polymerase chain reaction (PCR), and culture are 40.7%, 25.7%, and 53.4%, respectively. […] The International Pediatric Inflammatory Bowel Disease (PIBD) Ahead Program (PIBD-Ahead) systemic review and consensus statements mention that anti-OmpC positivity can predict the occurrence of structuring and penetrating complications.
  • #1 Testing for Ulcerative Colitis: Getting a UC Diagnosis
    https://www.health.com/ulcerative-colitis-diagnosis-7095025
    Lab tests won’t confirm ulcerative colitis, but they provide essential information and can help rule out similar diseases. […] A colonoscopy is an endoscopic exam that visualizes the large intestine. […] A biopsy is a sample of tissue sent to the lab for testing. A gastroenterologist will collect an intestinal sample for biopsy from several different areas of the colon during an endoscopic exam. The only way to definitively confirm ulcerative colitis is through endoscopic exams that include a biopsy. […] The diagnostic criteria for ulcerative colitis include a combination of these factors: Chronic diarrhea for more than four weeks, Endoscopic findings (e.g., inflammation, sores, bleeding, vascular pattern, scar tissue), Exclusion of other causes of colitis by history, lab work, and biopsy, Histology (biopsy findings).
  • #1 Testing for Ulcerative Colitis: Getting a UC Diagnosis
    https://www.health.com/ulcerative-colitis-diagnosis-7095025
    A healthcare provider will also stage ulcerative colitis to note the extent and severity of the disease. Staging helps when planning treatment. […] Healthcare providers use several different scoring systems to stage ulcerative colitis. The Mayo score is one of the most popular systems. […] A healthcare provider may order these lab tests to differentiate ulcerative colitis from Crohn’s disease: ASCA: ASCAs are found in both types of IBD but are more prevalent in Crohn’s disease. P-ANCA: Sixty to 70% of those with ulcerative colitis have P-ANCA antibodies. […] After collecting your medical history, a gastroenterologist will use an endoscopic exam and biopsy to make a definitive diagnosis.
  • #1 Ulcerative colitis – Wikipedia
    https://en.wikipedia.org/wiki/Ulcerative_colitis
    Biopsies of the mucosa are taken during endoscopy to confirm the diagnosis of UC and differentiate it from Crohn’s disease, which is managed differently clinically. […] Blood and stool tests serve primarily to assess disease severity, level of inflammation and rule out causes of infectious colitis. […] Fecal calprotectin is elevated in inflammatory conditions affecting the colon, and is useful in distinguishing irritable bowel syndrome (noninflammatory) from a flare in inflammatory bowel disease. […] Several conditions may present in a similar manner as ulcerative colitis and should be excluded.
  • #1 Diagnosis | Crohn’s & Colitis Ireland
    https://crohnscolitis.ie/support/diagnosis/facts/
    The results of laboratory tests alone are not not usually sufficient to diagnose Crohns disease or ulcerative colitis, further tests and diagnostic procedures are required. […] Endoscopy is performed using an endoscope which is a flexible tube with a light and a camera which transfers images from your bowel to a television screen. […] Your doctor will likely diagnose inflammatory bowel disease only after ruling out other possible causes for your signs and symptoms, including ischemic colitis, infection, irritable bowel syndrome (IBS), diverticulitis and colon cancer. […] To help confirm a diagnosis of IBD, you may have one or more of the following tests and procedures: […] Blood tests are used to check for anemia a condition in which there aren’t enough red blood cells to carry adequate oxygen to your tissues or to check for signs of infection from bacteria or viruses.
  • #1 Ulcerative Colitis Diagnosis – Crohn’s & Colitis Australia (CCA)
    https://crohnsandcolitis.org.au/about-crohns-colitis/ulcerative-colitis/ulcerative-colitis-diagnosis/
    There are different types of endoscopies that may be used for ulcerative colitis. […] Bowel imaging and scans: Used to discover inflammation and complications. […] Tests may be used again to monitor your disease and to see if the current treatment is working or if complications have developed. […] People who have had ulcerative colitis symptoms for at least eight years should get a colonoscopy every 1–3 years as recommended by your specialist.
  • #1 What to Expect After an Ulcerative Colitis Diagnosis
    https://resources.healthgrades.com/right-care/ulcerative-colitis/what-to-expect-after-an-ulcerative-colitis-diagnosis
    Ulcerative colitis is a chronic inflammatory bowel disease that can cause diarrhea, abdominal pain, and nutritional challenges. An ulcerative colitis diagnosis can be alarming, but having an accurate diagnosis is the first step to appropriate treatment and symptom relief. […] Your healthcare provider will monitor your colitis and overall well-being with a variety of tests, including: […] Colonoscopy/flexible sigmoidoscopy. These tests allow your healthcare provider to see the inside of your colon. They are used to monitor the progression of your disease and to screen for colon cancer. […] Blood tests. Simple blood tests help your medical team identify and treat nutritional deficiencies. […] Bone scans. Some ulcerative colitis medications can cause gradual bone loss. Healthcare providers use bone scans to evaluate the health of your bones. If needed, they can prescribe medication to support bone health. […] Regular colonoscopies may allow healthcare providers to detect colon cancer in its earliest stages, when it’s most treatable.
  • #1 Laboratory Diagnosis of Ulcerative Colitis and the Possibility of Personalized Assessment in Real Conditions | IntechOpen
    https://www.intechopen.com/online-first/1198916
    The calprotectin test is a noninvasive and inexpensive, but highly sensitive biomarker of intestinal inflammation, which is successfully used in diagnosis, assessing the effectiveness of treatment, predicting relapses, and monitoring the condition of patients with ulcerative colitis. […] The expanded laboratory diagnostics of UC that we have proposed allows, with the diagnosis established, not to resort to repeated expensive studies and to obtain real-time results that enable a personalized assessment of the severity of the patients condition.
  • #1 Crohn’s disease and ulcerative colitis | Better Health Channel
    https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/crohns-disease-and-ulcerative-colitis
    Ulcerative colitis can cause inflammation and ulceration in the large intestine (colon and rectum). […] To know if you have ulcerative colitis you will need to be tested by a doctor. […] Symptoms of ulcerative colitis are similar to many other conditions so several tests will likely be needed before you can get a diagnosis. […] Tests may include: blood tests, stool tests, endoscopy, bowel imagine and scans. […] Ulcerative colitis is a disease that will change over time. Tests may be used again to monitor disease and to see if the current treatment is working or if complications have developed. […] People who have had ulcerative colitis symptoms for at least 8 years should get a colonoscopy every one to 3 years as recommended by a specialist. […] Ulcerative colitis cannot currently be cured but for most people it can be well managed through medication, lifestyle choices and sometimes surgery. […] Medications for ulcerative colitis are mainly used to reduce inflammation. […] Tests may include: blood tests, stool tests, endoscopy, bowel imagine and scans.
  • #1 A sharper diagnosis for ulcerative colitis
    https://www.nature.com/articles/d42473-021-00539-z
    Researchers have zeroed in on the cause of ulcerative colitis. Their findings could lead to more accurate diagnostic tools. […] A simple blood test could be an alternative to colonoscopies for the diagnosis of ulcerative colitis. […] Diagnosis is sometimes difficult, with clinicians relying on invasive colonoscopies or endoscopies that are costly and time-consuming. […] If we had a biomarker, we would be able to diagnose ulcerative colitis with more confidence, says Masahiro Shiokawa, a gastroenterologist at the Kyoto University Graduate School of Medicine. […] As these autoantibodies are most often seen in patients with ulcerative colitis, rather than other bowel diseases, they have the potential to be used as reliable markers for diagnosis and could help clinicians track disease severity, says Shiokawa.
  • #1 A sharper diagnosis for ulcerative colitis
    https://www.nature.com/articles/d42473-021-00539-z
    In partnership with Medical Biological Laboratories (MBL), the researchers are using their findings to develop a fast, cost-effective, and accurate diagnostic test kit for ulcerative colitis. […] Their discovery prompted the researchers to partner with MBL to develop a diagnostic test kit that can detect the presence of integrin alpha-v/beta-6 autoantibodies with a simple blood test that costs a fraction of conventional diagnostic procedures. […] In January 2022, the researchers are planning to conduct a nationwide study on the kit in hospitals across Japan to test out its potential as a diagnostic tool that can be used in the clinic. […] We hope that it will be used in hospitals and clinical practice in Japan within the next two years, says Shiokawa. The next step would be to take the kit to hospitals worldwide.
  • #1 Enhancing diagnosis and disease monitoring for ulcerative colitis • healthcare-in-europe.com
    https://healthcare-in-europe.com/en/news/endoscopy-enhance-diagnosis-monitoring-ulcerative-colitis.html
    Artificial intelligence (AI) models are paving the way for predicting ulcerative colitis progression and pre-empting short- to medium-term disease exacerbations. […] AI tools can therefore potentially increase the efficiency and accuracy of endoscopic diagnosis and treatment of ulcerative colitis. […] The future of medical diagnostics may soon incorporate AI-based prognostic models that blend endoscopic, clinical, histological, laboratory, and imaging data, alongside transcriptional, proteomic, and microbiome biomarkers. […] The gastroenterology and endoscopy team at San Raffaele Hospital reported that AI-driven applications in digestive endoscopy for ulcerative colitis offer significant advantages. […] However, despite their potential to process extensive datasets, these emerging techniques are yet to become mainstream in clinical practice due to a lack of standardization.
  • #1 Ulcerative colitis – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/ulcerative-colitis/symptoms-causes/syc-20353326
    Ulcerative colitis is an inflammatory bowel disease that causes chronic inflammation and ulcers in the superficial lining of the large intestine, also called the colon. […] The only way to definitively diagnose ulcerative colitis is with a biopsy after taking a tissue sample through an endoscopic procedure. […] A blood test can check for anemia and check for signs of infection. A stool study can test for white blood cells and other specific proteins that point to ulcerative colitis, as well as rule out certain pathogens. […] A colonoscopy may be needed. This allows your doctor to view the entirety of the large intestine using an endoscope, a small camera mounted on a thin flexible tube. […] If your symptoms are more severe, your doctor may want some imaging done. An abdominal x-ray can rule out serious complications, like a perforated colon. An MRI or CT scan can also be performed for a more detailed view of the bowel, as well as to reveal the extent of the inflammation.
  • #2 Ulcerative colitis – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/ulcerative-colitis/symptoms-causes/syc-20353326
    Ulcerative colitis is an inflammatory bowel disease that causes chronic inflammation and ulcers in the superficial lining of the large intestine, also called the colon. […] The only way to definitively diagnose ulcerative colitis is with a biopsy after taking a tissue sample through an endoscopic procedure. […] A blood test can check for anemia and check for signs of infection. A stool study can test for white blood cells and other specific proteins that point to ulcerative colitis, as well as rule out certain pathogens. […] A colonoscopy may be needed. This allows your doctor to view the entirety of the large intestine using an endoscope, a small camera mounted on a thin flexible tube. […] If your symptoms are more severe, your doctor may want some imaging done. An abdominal x-ray can rule out serious complications, like a perforated colon. An MRI or CT scan can also be performed for a more detailed view of the bowel, as well as to reveal the extent of the inflammation.
  • #2
    https://www.nhs.uk/conditions/ulcerative-colitis/diagnosis/
    To diagnose ulcerative colitis, your GP will first ask about your symptoms, general health and medical history. […] A diagnosis of ulcerative colitis can be confirmed by examining the level and extent of bowel inflammation. […] If it’s thought your ulcerative colitis has affected more of your colon, another examination will be required. This is known as a colonoscopy.
  • #2 Ulcerative Colitis | Causes, Symptoms, Treatment & Support | Guts UK
    https://gutscharity.org.uk/advice-and-information/conditions/ulcerative-colitis/
    Ulcerative colitis usually affects the rectum. But in 1 in 20 people there is no rectal inflammation. This is called “rectal sparing”. Sometimes the inflammation affects the rectum only, this is called “proctitis”. Or it affects the left side of the large bowel, this is called left sided colitis. Sometimes it can be called pan (total) colitis, this is inflammation of the whole of the large bowel. […] The first steps to diagnosis include taking a full medical history. The doctor also looks at the person to check for pale skin and sores in the corners of the mouth, which can be signs of anaemia. Anaemia is when a person has low levels of iron in the blood which in this case is due to bleeding. The doctors will also gently examine the abdomen (belly) which includes feeling the abdomen for tenderness. Tenderness is a possible sign of inflammation.
  • #2 Ulcerative Colitis: Symptoms, Causes, Diagnosis & Treatment
    https://my.clevelandclinic.org/health/diseases/10351-ulcerative-colitis
    Ulcerative colitis (UC) is a chronic condition that happens when you have inflammation in your colon. […] To diagnose UC, your healthcare provider will perform a physical exam and ask about your symptoms and family history of IBD. Theyll order tests and perform procedures to rule out conditions similar to UC. […] Tests and procedures include: Blood tests: Your blood can show signs of anemia, which may mean you have bleeding in your colon or rectum. Blood tests can also help providers rule out other causes of your symptoms, like an infection. […] Endoscopic tests: An endoscope is a thin, flexible tube with a tiny camera. Your provider can insert the endoscope through your rectum to see inside your colon and take tissue samples for testing (biopsy). Common endoscopic tests to diagnose UC include colonoscopy and sigmoidoscopy.
  • #2 Inflammatory Bowel Disease – IBD | Choose the Right Test
    https://arupconsult.com/content/inflammatory-bowel-disease
    Measurement of fecal calprotectin, a calcium-binding protein, is useful to screen for intestinal inflammation associated with disease activity (eg, at initial presentation or relapse). […] Fecal calprotectin testing is a noninvasive substitute for endoscopy if the procedure is unavailable or unfeasible. […] The ACG recommends tests for inflammatory markers, such as C-reactive protein (CRP) or erythrocyte sedimentation rate (ESR), in the initial workup for IBD. […] Serologic marker testing is not currently recommended by the ACG for IBD diagnosis or prognosis due to its limited sensitivity and usefulness in differentiating between IBD subtypes. […] Although some genetic variants are associated with specific IBD phenotypes, genetic testing is not currently recommended for IBD diagnosis.
  • #2 Ulcerative Colitis Antibodies: Markers, Procedure, Accuracy
    https://www.healthline.com/health/ulcerative-colitis/ulcerative-colitis-antibodies
    The study also found that testing positive for pANCA and negative for ASCA was the best way to tell UC apart from Crohns disease. […] For an accurate diagnosis, doctors consider the results of antibody testing with other tests for UC. […] Antibody testing for UC may help detect certain substances in your blood that could indicate issues with your immune system attacking healthy cells in your large intestine. […] However, antibody tests are just one of the many diagnostic tools a doctor may consider for possible UC.
  • #2 Ulcerative colitis – Symptoms, diagnosis and treatment | BMJ Best Practice
    https://bestpractice.bmj.com/topics/en-gb/43
    Ulcerative colitis (UC) is a type of inflammatory bowel disease characterised by diffuse inflammation of the colonic mucosa and a relapsing, remitting course. […] Diagnosis requires endoscopy with biopsy and negative stool culture. […] Relapses are often associated with pathogens; therefore, stool should be obtained for culture in all cases of disease flare-up. […] This topic covers the diagnosis and treatment of ulcerative colitis in adults. […] Key diagnostic factors include presence of risk factors, rectal bleeding, diarrhoea, and blood in stool. […] 1st investigations to order include stool studies for infective pathogens, faecal calprotectin (FC), FBC, comprehensive metabolic panel (including LFTs), erythrocyte sedimentation rate (ESR), CRP, plain abdominal radiograph, flexible sigmoidoscopy, colonoscopy, and biopsies.
  • #2 Diagnosis of Ulcerative Colitis – NIDDK
    https://www.niddk.nih.gov/health-information/digestive-diseases/ulcerative-colitis/diagnosis
    To diagnose ulcerative colitis, doctors review medical and family history, perform a physical exam, and order medical tests. Doctors order tests to confirm the diagnosis of ulcerative colitis […] Doctors may use blood tests, stool tests, and endoscopy of the large intestine to diagnose ulcerative colitis. […] Doctors order endoscopy of the large intestine with biopsies to diagnose ulcerative colitis and rule out other digestive conditions.
  • #2 Ulcerative Colitis Workup: Approach Considerations, Serologic Markers, Other Laboratory Studies
    https://emedicine.medscape.com/article/183084-workup
    The diagnosis of ulcerative colitis (UC) is best made with endoscopy and mucosal biopsy for histopathology. Laboratory studies are helpful to exclude other diagnoses and assess the patient’s nutritional status, but serologic markers can assist in the diagnosis of inflammatory bowel disease. […] Colonoscopy can confirm the diagnosis of suspected UC; it is also the technique of choice to assess disease activity in patients with symptomatic colonic Crohn disease or UC. […] As noted, laboratory studies are useful principally for helping to exclude other diagnoses and to assess the patient’s nutritional status. However, serologic markers can assist in the diagnosis of inflammatory bowel disease. […] Once UC is suspected, endoscopy must be performed. Flexible sigmoidoscopy may be performed if the symptoms are mild, and the physician is likely to initiate therapy on the basis of the results obtained. However, most physicians perform a full colonoscopy if inflammation is found with flexible sigmoidoscopy.
  • #2 Ulcerative Colitis Workup: Approach Considerations, Serologic Markers, Other Laboratory Studies
    https://emedicine.medscape.com/article/183084-workup
    Endoscopic findings of UC include the following: Loss of vascular pattern, Granular and fragile mucosa, Ulceration, erosions, and/or pseudopolyposis. […] Multiple biopsy samples should be obtained from both inflamed and normal-appearing mucosa. […] Findings on colonoscopy with biopsy confirm a diagnosis. Also, this evaluation is useful for documenting the extent of the disease, for monitoring disease activity, and for surveillance for dysplasia or cancer. […] Histologically, most of the pathology in UC is limited to the mucosa and submucosa. […] Imaging has an important role in the workup of patients with suspected inflammatory bowel disease and in the differentiation of UC and Crohn disease. […] Cross-sectional imaging studies (eg, ultrasonography [US], magnetic resonance imaging [MRI], computed tomography [CT] scanning) are useful for showing the effects of these conditions on the bowel wall.
  • #2 Ulcerative Colitis | Doctor
    https://patient.info/doctor/ulcerative-colitis-pro
    Diagnosing ulcerative colitis (investigations) The diagnosis should be made on the basis of clinical suspicion supported by appropriate macroscopic findings on sigmoidoscopy or colonoscopy, typical histological findings on biopsy and negative stool examinations for infectious agents. […] Initial investigations should include FBC, renal function and electrolytes, LFTs, ESR, CRP, iron studies, vitamin B12 and folate. […] Faecal calprotectin testing is recommended as an option to support the differential diagnosis of IBD or irritable bowel syndrome in adults with recent-onset lower gastrointestinal symptoms for whom specialist assessment is being considered and cancer is not suspected. […] Sigmoidoscopy and rectal biopsy: for all patients presenting with diarrhoea, rigid sigmoidoscopy should be performed unless there are immediate plans to perform flexible sigmoidoscopy. […] Colonoscopy with multiple biopsies (at least two biopsies from five sites, including the distal ileum and rectum) is the first-line procedure for diagnosing colitis. […] It is advisable that patients with ulcerative colitis should have a colonoscopy after 8-10 years to re-evaluate disease extent.
  • #2 Crohn’s disease and ulcerative colitis | Better Health Channel
    https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/crohns-disease-and-ulcerative-colitis
    Ulcerative colitis can cause inflammation and ulceration in the large intestine (colon and rectum). […] To know if you have ulcerative colitis you will need to be tested by a doctor. […] Symptoms of ulcerative colitis are similar to many other conditions so several tests will likely be needed before you can get a diagnosis. […] Tests may include: blood tests, stool tests, endoscopy, bowel imagine and scans. […] Ulcerative colitis is a disease that will change over time. Tests may be used again to monitor disease and to see if the current treatment is working or if complications have developed. […] People who have had ulcerative colitis symptoms for at least 8 years should get a colonoscopy every one to 3 years as recommended by a specialist. […] Ulcerative colitis cannot currently be cured but for most people it can be well managed through medication, lifestyle choices and sometimes surgery. […] Medications for ulcerative colitis are mainly used to reduce inflammation. […] Tests may include: blood tests, stool tests, endoscopy, bowel imagine and scans.
  • #2 Ulcerative Colitis: The Tests You Need for a Diagnosis
    https://www.webmd.com/ibd-crohns-disease/ulcerative-colitis/do-i-have-ulcerative-colitis
    Your doctor will be able to see your intestinal tissue immediately, detecting inflammation and bleeding, and may be able to tell if you have ulcerative colitis or another problem. […] Another way to diagnose ulcerative colitis is a colonoscopy. […] This exam can help determine the severity of ulcerative colitis and Crohns disease, as well as distinguish between the two diseases. […] Your doctor might order an X-ray to make sure you dont have another kind of problem, like a perforated colon. […] Or you might need a CT scan. It helps detect any complications from ulcerative colitis or rule out other conditions that are similar.
  • #2 IBD Diagnosis | Penn State Health
    https://www.pennstatehealth.org/services-treatments/ibd-center/patient-care-treatment/ibd-diagnosis
    If you suffer from ulcerative colitis or Crohn’s disease, you want safe and effective relief. Our nationally recognized gastrointestinal doctors and colorectal surgeons specialize in IBD, and they understand how your discomfort affects your daily life. […] Making a diagnosis of IBD can sometimes be difficult, as there is not always one single test to determine if you have one of these conditions. Our doctors, surgeons, and radiologists have the most advanced and minimally invasive tools at their fingertips, providing you with an accurate understanding of your condition and a personalized plan for treatment. […] Diagnostic tests for your IBD may include: […] CT and MR enterography: Magnetic resonance (MR) enterography is a minimally invasive imaging test that uses a magnetic field (not radiation) to obtain detailed pictures of your small bowel to pinpoint areas of inflammation (swelling and irritation), bleeding, and other small bowel conditions. Computed tomography (CT) enterography is a quick, accurate, and painless noninvasive procedure. This procedure combines x-rays with a contrast material to help our radiologists see the inside of your intestine with great accuracy.
  • #2 Diagnosis and Monitoring of Ulcerative Colitis
    https://pmc.ncbi.nlm.nih.gov/articles/PMC9797286/
    UC has a distinct endoscopic appearance with continuous mucosal inflammation extending proximally from the rectum and may feature granularity, loss of vascular markings, friability, deep ulcerations, and spontaneous bleeding. […] Establishing pretreatment extent of disease is imperative for subsequent management decisions as well as evaluating response to medical therapies. […] As UC is a chronic inflammatory condition limited to the mucosa, pathologic signs of activity and chronicity aid in its diagnosis. Active inflammation is identified as the presence of epithelial injury with neutrophil infiltrating crypt epithelium (cryptitis), crypt abscesses, or neutrophilic infiltration of surface epithelial with or without ulceration. […] Several scoring systems and classifications have been used to risk stratify UC activity and severity. […] Distinguishing CD from UC prior to initiation of therapy can be helpful in determining best treatment options and prognostication, specifically if surgery is warranted, as well as aid in proper disease monitoring given their differing potential complications and natural history.
  • #2 Ulcerative Colitis – Gastrointestinal Disorders – Merck Manual Professional Edition
    https://www.merckmanuals.com/professional/gastrointestinal-disorders/inflammatory-bowel-disease-ibd/ulcerative-colitis
    X-rays are not diagnostic but occasionally show abnormalities. […] Patients with known disease and a recurrence of typical symptoms should be examined, but extensive testing is not always required. […] Patients require prompt hospitalization during severe flare-ups. […] If fulminant or toxic colitis is suspected, the patient should stop all antidiarrheal medications. […] After effective treatment of a flare-up, corticosteroids are tapered based on clinical response and then stopped because they are ineffective as maintenance. […] Nearly one third of patients with extensive ulcerative colitis ultimately require surgery. […] Regular colonoscopic surveillance, preferably during remission, is advised for patients with disease duration 8 to 10 years.
  • #2 Diagnosis and Monitoring of Ulcerative Colitis
    https://pmc.ncbi.nlm.nih.gov/articles/PMC9797286/
    Ulcerative colitis is one of the two main subtypes of inflammatory bowel disease, along with Crohn’s disease. Understanding the clinical and endoscopic features of ulcerative colitis is critical in achieving a timely diagnosis. An initial evaluation includes assessing clinical symptoms, inflammatory markers, endoscopic findings, and determination of the presence or absence of extraintestinal manifestations. […] Clinical, laboratory, endoscopic, and histopathologic information are used to establish a diagnosis of ulcerative colitis (UC), one of the two main subtypes of inflammatory bowel disease (IBD), along with Crohn’s disease (CD). […] Symptoms such as bloody diarrhea, mucous in the stool, urgency, tenesmus, and abdominal cramping may be consistent with UC. […] On initial presentation, health care providers should assess for the frequency of bowel movements, severity of bleeding, presence of nocturnal bowel movements, and degree of weight loss to help determine disease severity.
  • #3 Diagnosis of ulcerative colitis – GPnotebook
    https://gpnotebook.com/pages/infectious-disease/diagnosis/diagnosis-of-ulcerative-colitis
    A gold standard method for diagnosis of Ulcerative colitis is not currently available. […] Diagnosis of ulcerative colitis is achieved through a combination of medical history, clinical evaluation and supported by the typical endoscopic and histological findings: […] A number of autoantibodies especially perinuclear antineutrophil cytoplasmic antibodies (pANCA) have been identified in patients with UC. (approximately 50-60% of patients are found to be positive for pANCA). Due to the low sensitivity of pANCA for the diagnosis of UC it cannot be used as a diagnostic tool.
  • #3 Laboratory Diagnosis of Ulcerative Colitis and the Possibility of Personalized Assessment in Real Conditions | IntechOpen
    https://www.intechopen.com/online-first/1198916
    Calprotectin, determined in feces, correlates well with endoscopic parameters, as well as with relapses and response to therapy, and is therefore useful for diagnosing and assessing the severity of the disease. […] The following ECCO 2D statement noted that routine clinical use of genetic or serological molecular markers is not recommended for the classification of ulcerative colitis. […] Initial studies should include a complete blood count, electrolytes, liver and kidney function, iron, vitamin D, C-reactive protein (CRP), and fecal calprotectin. […] Laboratory markers of chronic inflammation may remain within normal limits in mild to moderate forms of UC. […] In patients with severe clinical activity of UC, elevated levels of CRP are often accompanied by an increase in ESR, anemia, and hypoalbuminemia.
  • #3 Clinical Focus – Challenges in the Diagnosis of Ulcerative Colitis and Crohn’s Disease
    https://www.medscape.org/viewarticle/540595
    However, despite the availability of our current technology, in approximately 10% of patients with IBD limited to the colon, it is not initially possible to distinguish ulcerative colitis from Crohn’s disease. […] This study was limited by the small numbers of patients included in each group; the lack of standardization of ANCA testing used; and by different mean ages of subjects in the ulcerative colitis, Crohn’s disease, and control groups. […] At this time, there is insufficient evidence to demonstrate that ANCA/pANCA and ASCA testing alone is completely reliable in reaching a definitive diagnosis. […] In summary, the presence of ANCA, pANCA, ASCA, anti-OmpC, and anti-CBir1 markers appears to be associated with ulcerative colitis and Crohn’s disease. […] The appropriate diagnosis of ulcerative colitis and Crohn’s disease is of paramount importance in order to aid in appropriate patient management.