What is fibromuscular dysplasia (FMD)?

Updated: Jul 27, 2018
  • Author: James A Wilson, MD, MSc, FRCPC; Chief Editor: Helmi L Lutsep, MD  more...
  • Print

Fibromuscular dysplasia (FMD) is an angiopathy that affects medium-sized arteries predominantly in young women of childbearing age. Among patients with identified FMD, renal involvement occurs in 60-75%, cerebrovascular involvement in 25-30%, visceral involvement in 9%, and arteries of the limbs in about 5%. [1, 2] FMD occurs in most other medium-to-large arteries as well, including the coronary arteries, [3] the pulmonary arteries, [4] and the aorta. [5] See the image below.

Angiogram of the descending aorta demonstrates the Angiogram of the descending aorta demonstrates the stenoses of FMD in the renal arteries bilaterally.

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!