Claudication in an adolescent with a hypoplastic femur.

The most common cause of claudication is atherosclerosis obliterans. However, when it presents in adolescence, other causes should be considered. We describe the case of a 15-year-old girl who had severe intermittent claudication 8 years after a limb-lengthening procedure for a hypoplastic femur. The lesion responsible was an isolated fibromuscular dysplastic segment of the distal superficial femoral artery and proximal popliteal artery. The etiology, treatment, and histopathology are discussed.