The saphenous vein is usually used as a conduit in vascular bypass. Its degeneration and aneurysm are rare and have unknown causes. This report comes from a male patient 32 years old, healthy, evolving, 19 years later of an arterial reconstruction with venous graft with the aneurysm of this graft. He was treated with replacement of it by PTFE bypass, evolving without complications. Microscopy showed dissection area of the graft wall with deposition of foam cells.
aneurysm; saphenous vein; vascular grafting
