Minimally invasive diagnosis of persistent sciatic artery by multidetector-row computed tomographic angiography.

Persistent sciatic artery is a rare but potentially significant vascular anomaly that is associated with a high incidence of aneurysm formation and limb-threatening ischemic complications. The diagnosis of persistent sciatic artery has usually been made by conventional angiography. We report a case of occluded and patent persistent sciatic arteries in which multidetector-row computed tomographic angiography allowed a definitive diagnosis of this rare vascular condition.