title: Radiologic seminar CXXXXI: volvulus of the sigmoid colon.
mesh_terms: D000368:Aged; D001466:Barium Sulfate; D012809:Colon, Sigmoid / Q000000981:diagnostic imaging*; D004733:Enema; D006801:Humans; D007415:Intestinal Obstruction / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D011859:Radiography
chemical_list: D001466:Barium Sulfate