A case of a developmental anomaly of the femoral artery: persistent sciatic artery.

A case of a persistent sciatic artery in a 68-year-old farmer, showing symptoms of acute arterial occlusive lesion of the right lower limb is presented. The persistent sciatic artery was joined to the internal iliac artery proximally and to the popliteal artery distally. The anomalous artery was occluded by atheromatous thrombi. The superficial femoral artery was hypoplastic and terminated in the descending genicular artery at the midthigh level. A successful bypass was performed between the common femoral artery and proximal popliteal artery utilizing a woven teflon graft.