title: Submucosal bleeding in the sigmoid colon.
mesh_terms: D000293:Adolescent; D000328:Adult; D003113:Colonoscopy; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis*; D006801:Humans; D007413:Intestinal Mucosa; D012810:Sigmoid Diseases / Q000175:diagnosis*