Rare finding of primary aortoduodenal fistula on single-photon emission computed tomography/computed tomography of gastrointestinal bleeding: A case report

Figure 1 A 67-year-old man received multiple image examination, but each gastrointestinal active bleeding point was different. A: Esophagogastroduodenoscopy (EGD) showed three gastric ulcers, which were suspected Dieulafoy lesions; B: Small bowel endoscopy showed a shallow ulcer with pigmented spots in the small bowel; C: EGD showed duodenal diverticulum on the third portion; D: ^99mTc-red blood cell scan showed the radioactivity in the middle ascending colon to the hepatic flexure; E: Colonoscopy found two outpunching with dark brown content and mild oozing in the transverse colon.