title: Autoamputation of benign and malignant colonic polyps: report of two cases.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology; D000231:Adenocarcinoma, Papillary / Q000473:pathology / Q000628:therapy; D000368:Aged; D001466:Barium Sulfate; D002291:Carcinoma, Papillary / Q000473:pathology; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D006801:Humans; D007417:Intestinal Polyps / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011859:Radiography
chemical_list: D001466:Barium Sulfate