Fibromuscular hyperplasia of the abdominal aorta.

The case of a 38-year-old female with fibromuscular hyperplasia of the abdominal aorta causing a leg ulcer is presented. The correct diagnosis was not recognized before or during operation and the lesion was treated as atherosclerosis. This would appear to be the first reported case of fibromuscular hyperplasia of the aorta resulting in clinical impedence of flow.