Abstract
A nonspecific aneurysm, commonly considered as an atherosclerotic aneurysm, of the superficial femoral artery is relatively unusual. A 71-year-old man was admitted because of a pulsatile mass in the left thigh. Enhanced computed tomography revealed a 53-mm infra-renal abdominal aortic aneurysm and a 40-mm aneurysm of the left superficial femoral artery. The pathological findings showed the superficial femoral artery aneurysm to be caused by atherosclerosis. Since an aneurysm of the superficial femoral artery is difficult to detect due to the deep structure of the superficial femoral artery in the thigh, the incipient symptom is occasionally rupture. We need to be able to recognize aneurysm of the superficial femoral artery and perform early detection and surgical treatment before complications.
