2 Cases of Pathologically Proven Cephalic Fibromuscular Dysplasia

ABSTRACT

Fibromuscular dysplasia (FMD) is a segmental nonatheromatous and noninflammatory angiopathy of unknown cause. Despite the unknown origin Of FMD, it has been recognized in the extracranial internal cartid, vertebral, and intracranial arteries. Usually the diagonsis of FMD has been done by angiographic findings, and pathologically proven cases are very rare. We report 2 patients who had suffered from hemicranial pain and ipsilateral ama-urosis figax, and whose initial laboratory evaluations revealed high ESR. The biopsy was done in the temporal artery under the impression of the temporal arteritis, which showed the findings of the fibromuscular dysplasia.