Fig. 10From: Clinical and endoscopic features of aorto-duodenal fistula resulting in its definitive diagnosis: an observational studySimple computed tomography (CT) image after an upper endoscopy (case 6). Arrowhead: a cyst-shaped aneurysm adjacent to the duodenum is seen. Arrowhead: since a marking clip was placed on the opposite side, diagnosis of aorto-duodenal fistula was easy, even with a simple CTBack to article page