title: Primary aortoduodenal fistula. A rare cause of acute gastrointestinal hemorrhage.
mesh_terms: D000208:Acute Disease; D000368:Aged; D001014:Aortic Aneurysm / Q000175:diagnosis; D001018:Aortic Diseases / Q000150:complications* / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D004378:Duodenal Diseases / Q000150:complications* / Q000000981:diagnostic imaging; D005402:Fistula / Q000150:complications* / Q000000981:diagnostic imaging; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D007412:Intestinal Fistula / Q000150:complications* / Q000000981:diagnostic imaging; D008297:Male; D011859:Radiography