Spontaneous vertebro-vertebral arterio-venous fistula associated with fibro-muscular dysplasia

Abstract
Extracranial vertebral arteriovenous fistulae of non traumatic origin are extremly rare. The authors report two cases of spontaneous vertebro-vertebral arteriovenous fistulae associated with fibromuscular dysplasia. They discuss the relation-ship between arteriovenous fistulae and fibro-muscular dysplasia, and the specific problems of treatment in these two cases.