Fibromuscular dysplasia diagnostic study of choice

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

• Imaging modilities are the methods for diagnosing FMD.
• Duplex ultrasonography, accompanied by computed tomographic angiography (CTA), and magnetic

resonance angiography (MRA), are imaging techniques for detecting FMD lesions but the gold standard remains catheter-based angiography.

Diagnostic Study of Choice

Study of choice

• Catheter-based angiography is the gold standard test for the diagnosis of renovascular fibromuscular dysplasia.

• The following result of Catheter-based angiography is confirmatory of fibromuscular dysplasia:

 * Multifocal FMD: Imaging may reveal the classic string of beads appearance. (image 1)
 * Focal FMD: Imaging may reveal a concentric, smooth, band-like focal stenosis or a tubular stenosis (image 2)
 *extreme arterial tortuosity. This is most common in the carotid, vertebral, and coronary arteries (image 3),