Abstract
We report a case of peroneal artery aneurysm complicated with Marfan syndrome. A 39-year-old woman had undergone whole aorta replacement in 5 consecutive operations over 7 years. She felt a pulsating mass in the left inner calf of her leg and was admitted to our hospital. Computed tomography demonstrated peroneal artery aneurysm with a maximum transverse diameter of 33 mm. Aneurysmorrhaphy and surgical ligation via a medial approach was performed. Pathological results showed Marfan syndrome. The patient made good progress following surgery without any complications. Peroneal artery aneurysm is very rare. In this case, however, follow up is important because aneurysm may have been progressed in another site.