Arteriovenous malformation of the colon, a source of massive low intestinal hemorrhage.
D000368:Aged; D000792:Angiography; D001165:Arteriovenous Malformations / Q000150:complications* / Q000000981:diagnostic imaging; D002432:Cecum / Q000098:blood supply; D003106:Colon / Q000098:blood supply*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male