title: Extrarectal and extrasigmoidal masses; proctosigmoidoscopic interpretation and evaluation.
mesh_terms: D000005:Abdomen; D012809:Colon, Sigmoid / Q000175:diagnosis*; D004194:Disease; D006801:Humans; D010808:Physical Examination; D012007:Rectum / Q000175:diagnosis*; D012812:Sigmoidoscopy
keywords: ABDOMEN/diseases; RECTUM/examination; SIGMOID/examination