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Published on: February 14, 2021
[Histopathology of ulcerative colitis in biopsy]
Akinori Iwashita1, Seiji Haraoka, Keisuke Ikeda
1Department of Pathology, Fukuoka University Chikushi Hospital.
Insights
Histologic diagnosis of ulcerative colitis (UC) on biopsy is challenging. Key features include inflammation and architectural changes, but clinical, endoscopic, and radiologic findings are crucial for accurate UC diagnosis.
Area of Science:
- Gastroenterology
- Pathology
- Histopathology
Context:
- Histologic examination of biopsy specimens is essential for diagnosing gastrointestinal conditions.
- Ulcerative colitis (UC) diagnosis relies on a combination of clinical, endoscopic, and histologic findings.
- Differentiating UC from other colorectal pathologies on biopsy can be complex.
Purpose:
- To outline the macroscopic and microscopic features of ulcerative colitis (UC) relevant for histologic diagnosis on biopsy specimens.
- To discuss differential diagnoses for UC in biopsy samples.
- To highlight the challenges in biopsy-based UC diagnosis and emphasize the importance of integrated diagnostic approaches.
Summary:
- Key histologic features for UC diagnosis on biopsy include dense inflammatory infiltrate in the lamina propria mucosae, mucosal architectural abnormality, and vascular changes.
- Consideration of colorectal adenocarcinoma, dysplasia, and cytomegalovirus infection is crucial for differential diagnosis.
- While UC diagnostic criteria are established, biopsy-based diagnosis is difficult, necessitating integration with clinical, radiological, and endoscopic data.
Impact:
- Provides a guide for pathologists and gastroenterologists on interpreting UC biopsy findings.
- Aids in improving the accuracy of UC diagnosis, especially in challenging cases.
- Underscores the importance of a multidisciplinary approach in diagnosing ulcerative colitis.
Abstract:
For histologic diagnosis on biopsy specimens, we gave an outline of macroscopic and microscopic features of ulcerative colitis (UC), including differential diagnosis. The most important histologic features on biopsy are dense mixed inflammatory infiltrate in the lamina propria mucosae, mucosal architectural abnormality, and vascular change. Evidence of colorectal adenocarcinoma, dysplasia, and cytomegalovirus infection should also be taken into account. Although diagnostic criteria for UC are well understood, the biopsy diagnosis of UC is comparatively difficult. Thus the diagnosis of UC should be made mainly by clinical pictures, course of the illness, and radiological and endoscopic pictures.
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