[Rupture to the skin of atheromatous aneurysm on a femoropopliteal venous bypass using an in situ vein].

Atheromatous aneurysmal degeneration of a venous bypass graft is a rare and late event after venous bypass grafting. We report the case of a 49-year-old man in whom a large aneurysm of a saphenous graft implanted 10 years earlier ruptured to the skin. Amputation was required. Graft degeneration can lead to complications which may be life or limb-threatening due to graft rupture, graft thrombosis or distal embolization. Close follow-up after arterial reconstruction using a vein graft is therefore highly warranted for early detection and correction of any abnormalities before onset of complications.