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Disease Information : Fibromuscular Dysplasia : Diagnosis

Fibromuscular Dysplasia : Diagnosis

How is Fibromuscular Dysplasia diagnosed?

There are a number of methods that can be used to detect FMD. These include a special type of cat scan (CTA), a special type of MRI (MRA), ultrasound and an arteriogram, which is an invasive procedure. The experience and expertise available at your medical institution will play an important role in what diagnostic tests are used to diagnose FMD. In the most common forms of FMD, a characteristic "string of beads" appearance is seen in the affected artery. This appearance is due to changes in the cellular tissue of the artery wall that causes the arteries to alternatively become narrow and dilated. Less common, but more severe forms of FMD may cause areas of vessel narrowing only without the "string of beads" appearance. In many cases, a doctor may recommend repeating an imaging study to follow the FMD that is present in certain blood vessels periodically, such as a carotid or renal ultrasound study every year.

 

(Pictured right, an angiogram of a right internal carotid FMD with the "string of beads" shown. Photo use courtesy of Cheryl Bailey)

Fibromuscular Dysplasia section was last modified: June 04, 2010 - 04:44 pm