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溃疡性结肠炎
Colonic biopsy specimen showing severe mucosal inflammation, formation of crypt abscess, mild glandular atrophy, and distortion, suggesting an active phase of ulcerative colitis; haematoxylin/eosin staining, ×400 magnification
From Iannone F, Scioscia C, Musio A, et al Leucocytoclastic vasculitis as onset symptom of ulcerative colitis Ann Rheum Dis 2003;62:785-6.
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