Abstract
A hypertensive 77-year-old woman was admitted as an emergency because of unconsciousness and cardiopulmonary arrest after esophagogastroduodenoscopy for assessment of anemia. Abdominal enhanced computed tomography showed intra-abdominal bleeding because of the rupture of a left gastroepiploic artery aneurysm. Arteriography from the splenic artery demonstrated rupture of the left gastroepiploic artery aneurysm and it was embolized with micro-coils. Rupture of such aneurysms may be caused by excessive insufflation of the stomach during an endoscopic examination.