Fibromuscular dysplasia of the renal arteries

(A) Focal FMD in a 28-year-old female with severe hypertension. Note the severe focal stenosis (arrow) in the mid part of the right renal artery.

(B) Multifocal FMD in a 52-year-old female. Note stenosis followed by dilation in the mid to distal right renal artery.