Massive upper gastrointestinal bleeding from an accessory splenic artery mimicking isolated gastric varices.

Knowledge of anatomical variations of coeliac trunk and its branches is important for surgeons and interventional radiologists planning surgical and radiological interventions. We describe a case of a 42-year-old male with an accessory splenic artery (ASA) originating from the left gastric artery (LGA) running in the wall of gastric fundus and mimicking isolated gastric varices, which was observed during endoscopy. Bleeding from this artery was massive and was managed with endovascular coil embolisation. Coeliac angiography of the patient with upper gastrointestinal bleeding showed that the coeliac trunk divided into 3 arteries: the LGA, the splenic artery, and the right hepatic artery. Additionally, the variations of ASA and the left hepatic artery arising from LGA, and the left and right inferior phrenic arteries arising from ASA were identified. This case is the first to be presented in the literature with ASA originating from LGA that was situated in the gastric wall where inferior phrenic arteries arose from the ASA.