Colonic mucosa shows focal superficial erosion 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.
Small aphthous ulcers in cecum, descending colon and sigmoid colon.
Soft tissue fragments collectively measured 1 cm, totally embedded.
Colonoscopic biopsy: