Video 1 Diagnosis and management of a primary aortogastric fistula in the setting of acute upper gastrointestinal bleeding. ▶ Fig. 1 Views during esophagogastroduodenoscopy showing: a, b on retroflexed view, an extrinsic bulging mass in the stomach (asterisk), partially covered by blood clots (arrow), originating from the fundus and extending to the posterior wall of the proximal body; c on frontal view, a large adherent blood clot.