Intact colonic mucosa mildly infiltrated by lymphocytes, neutrophils and plasma cells. Mucigenic cells are intact and no evidence of crypt abscesses. No evidence of atypia or malignancy.
Chronic diarrhea. Colonic biopsies were taken to confirm or exclude microscopic colitis.
Soft tissue fragments measured 1.2 cm, totally embedded.
Colon, endoscopic biopsy: