Fibromuscular dysplasia - involving renal arteries with aneurysm formation

Case contributed by Henry Knipe


Follow-up post left nephrectomy.

Patient Data

Age: 60 years
Gender: Female

The right renal artery has a "string of beads" appearance consistent with fibromuscular dysplasia. There is a large aneurysm arising from a superior branch. Left nephrectomy. 

Case Discussion

Fibromuscular dysplasia (FMD) is the most common cause of renal artery aneurysms. Approximately 40% of patients with FMD develop a renal artery aneurysm, although renal artery aneurysms themselves are considered a rare entity. 

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