Fibromuscular dysplasia of the right subclavian artery.

The case of an uncommon form of arterial fibromuscular dysplasia is reported. The anomaly was located in the right subclavian artery. Claudication of the affected limb was the presenting symptom. Angiography was diagnostic in visualizing typical multifocal stenosis of the proximal portion of the right subclavian artery. Complete surgical correction was performed by establishing a carotido-subclavian by-pass graft.