title: Intestinal vascular ectasia. Improving diagnostic capability poses therapeutic dilemma.
abstract: A case of gastrointestinal bleeding in a 73-year-old man secondary to vascular ectasia is presented. The use of the 99m technetium-tagged erythrocyte scanning to localize the bleeding site and arteriography to document a vascular malformation strongly suggested this diagnosis. Elective hemicolectomy failed to eliminate bleeding, however. Endoscopic and surgical therapies are available for this condition, but the relative frequency of postoperative rebleeding requires conservatism in recommending surgical excision.
mesh_terms: D000368:Aged; D000792:Angiography; D001165:Arteriovenous Malformations / Q000175:diagnosis*; D003082:Colectomy; D003113:Colonoscopy; D003937:Diagnosis, Differential; D004108:Dilatation, Pathologic / Q000150:complications / Q000175:diagnosis; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D006801:Humans; D007413:Intestinal Mucosa / Q000098:blood supply; D007422:Intestines / Q000098:blood supply* / Q000000981:diagnostic imaging; D008297:Male; D011379:Prognosis; D011877:Radionuclide Imaging; D012007:Rectum; D013667:Technetium; D013684:Telangiectasis / Q000175:diagnosis
chemical_list: D013667:Technetium