Abstract
A 71-year-old woman with a complete-type persistent sciatic artery aneurysm successfully underwent aneurysmectomy and femoro-popliteal below the knee bypass surgery utilizing in situ saphenous vein graft (SVG). She found pulsatile mass on her left buttock 1 year prior to the surgery, and the symptom disappeared. After that, she suffered from left sciatic neuralgia and coldness along her left leg. CT finding showed 4×3 cm sized left sciatic artery aneurysm with an almost thrombotic, sciatic artery along the lateral back side of her left upper leg. Her left superficial femoral artery did not connect to her popliteal artery below the knee. Aneurysmectomy was essential to release her from neuralgia by mass compression. Distal anastomosis was placed on the left popliteal artery below the knee less than 3 mm in diameter. So in situ SVG was chosen for bypass surgery. The result of the surgery was successful, and her symptoms disappeared.
