title: Arteriovenous malformation of the upper rectum in an unusual site: report of a case and review of the literature.
abstract: A single case of vascular ecstasia involving the upper rectum and manifesting as an ulcerative lesion is reported. This is the first report of such a case. The authors emphasize the importance of exploratory laparotomy and careful histologic studies in diagnosting such cases.
mesh_terms: D000328:Adult; D001165:Arteriovenous Malformations / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D008297:Male; D012007:Rectum / Q000098:blood supply*