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Histopathological Diagnosis of Inflammatory Bowel Disease Takashi Yao 1 , Kuniko Iihara 2 1Department of Human Pathology, Juntendo University Graduate School of Medicine, Tokyo 2Department of Pathology, Social Insurance Chuo General Hospital, Tokyo Keyword: inflammatory bowel disease , ulcerative colitis , Crohn's disease , macroscopic feature , histological feature pp.601-610
Published Date 2013/5/24
DOI https://doi.org/10.11477/mf.1403113801
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 It is often difficult to make a differential diagnosis of inflammatory bowel disease. On the occasion of its differential diagnosis, imaging of the histological feature from the macroscopic feature is important.

 Basic units of macroscopic features of UC(ulcerative colitis)are as follows : (1)diffuse brownish mucosa, (2)irregularly granular mucosa, (3)multiple erosion and small ulcers, (4)pseudopolyposis. Corresponding histological findings to these macroscopic features are as follows : (1)diffuse chronic active inflammation with basal plasmacytosis, (2)destruction of deep mucosa by crypt abscess, (3)groove-like ulcer by destruction of full-thickness of the mucosa, (4)multiple ulcers and island-like residual mucosa.

 Basic units of macroscopic features of CD(Crohn's disease)are as follows : (1)aphthous ulcers, (2)small ulcers, (3)longitudinal ulcer, (4)cobblestone appearance/inflammatory polyposis. Corresponding histological findings to their macroscopic features are as follows : (1)active inflammation in lymphoid follicles(often accompanied by granuloma), (2)mucosal destruction by focal and severe inflammation(fissuring ulcer), (3)longitudinally arranged ulcers, (4)multifocal island-like residual mucosa with hyperplasia for irregular ulceration.

 It is also important to understand the characteristics of the upper gastrointestinal tract lesions in addition to the lower gastrointestinal tract. Focally enhanced gastritis is a characteristic histological findings for CD. The histological features of the upper gastrointestinal tract lesion of UC are the same as those of UC in the colorectum.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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