[A case report of multiple aneurysms of pancreaticoduodenal region with celiac obstruction].

We treated a 53-year-old man who had a dorsal pancreatic aneurysm and three pancreaticoduodenal aneurysms with celiac obstruction. Resection of the dorsal pancreatic aneurysm and bypass grafting from abdominal aorta to common hepatic artery with his saphenous vein were performed. A diagnosis of the aneurysm caused by arteriosclerotic changes was confirmed by the pathohistological findings. The postoperative clinical course was uneventful and angiography revealed disappearance of the left pancreaticoduodenal aneurysms. These findings suggest that not arterioscrelotic changes but also circulatory disturbance caused by celiac obstruction are reasonable as a part of etiology in growth of aneurysms.