There is severe ulceration of colonic mucosa with reduced mucigenic cells and related dense infiltration by neutrophils and lymphocytes, amounting at crypt abscess formation in some areas. No evidence of dysplasia. No evidence of malignancy.
Thickened mucosa of ascending colon with scattered ulcers.
Soft tissue fragments collectively measured 1x0.7 cm, totally embedded.
Ascending colon endoscopic biopsy: