One of the submitted fragments is totally ulcerated with related capillary proliferation and moderate inflammation. Residual fragments showing intact colonic mucosa with mild reduction in the number of mucigenic cells and moderate infiltration by lymphocytes, plasma cells and neutrophils. However, crypt abscesses are not identified. No evidence of atypical or malignant cells.
Colonic hyperemic mucosa in patient has chronic diarrhea.
Fragments of collective size 6x5 mm.
Colon, endoscopic biopsy: