Perforation with massive melena in a case of carcinoma of colon.
D000328:Adult; D003108:Colonic Diseases / Q000209:etiology*; D003110:Colonic Neoplasms / Q000150:complications*; D006801:Humans; D007416:Intestinal Perforation / Q000209:etiology*; D008297:Male; D008551:Melena / Q000209:etiology*