Abstract
Persistence of the sciatic artery, a rare vascular anomaly, has been reported in about 75 cases in Europe and the U.S. and 17 clinical cases in Japan. A 28-year-old female was admitted to the hospital because of hemihypertrophy and superficial venous dilatation of the left lower limb about 6 years before. Angiographic examination revealed the persistent sciatic artery on the left side. Stripping had been performed for superficial varicosity, but she developed venous stasis symptom again half a year later. So aneurysmorrhaphy of the common iliac artery was made to reduce blood flow over the dilated common iliac artery. This time the patient visited the hospital because of an abdominal tumor and increased venous stasis symptoms. Angiography showed an aneurysm from the abdominal aorta below bifurcated renal artery to sciatic artery. At surgery, a Y-shaped woven dacron graft was placed from the infra-renal artery to right common iliac and left extermal iliac artery. The left internal iliac the politeal artery were ligated, and a PTFE graft was placed from the left leg of the Y-shaped graft to the popliteal artery. Pathological finding was medianeclosis.
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