[Vascular malformations of the right colon causing massive lower gastrointestinal hemorrhage].
D001165:Arteriovenous Malformations / Q000150:complications*; D003106:Colon / Q000098:blood supply*; D004108:Dilatation, Pathologic; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans