title: Extrinsic stretching, narrowing and anterior indentation of the rectosigmoid junction.
mesh_terms: D001466:Barium Sulfate; D012809:Colon, Sigmoid / Q000000981:diagnostic imaging / Q000473:pathology*; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging / Q000209:etiology; D004312:Douglas' Pouch / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D010532:Peritoneal Diseases / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D012007:Rectum / Q000000981:diagnostic imaging / Q000473:pathology*
chemical_list: D001466:Barium Sulfate