A 68-year-old woman presented with unstable angina and underwent cardiac catheterization by radial access. There was difficulty advancing the guidewire; a brachial angiogram revealed the following. What is the diagnosis?
Answer D. Fibromuscular dysplasiaThe correct answer is fibromuscular dysplasia. This right brachial angiography has a classic "string of beads" pattern consistent with fibromuscular dysplasia, a noninflammatory, nonatherosclerotic disorder of the blood vessels. Fibromuscular dysplasia is most commonly seen in the carotid and renal arteries but has been observed in nearly every arterial bed.
Takayasu's arteritis
Arteriovenous malformation
Brachial artery stenosis
Fibromuscular dysplasia
C.V.S.