Fibromuscular Dysplasia (FMD) is a rare disease in which abnormal cell development in the artery wall.
Below is a video explaining FMD.
FMD is most commonly found in the renal and/or carotid arteries.
Any pain or clinical sign related to FMD typically comes from the organ that is supplied by that artery. For example, FMD in the renal arteries may cause high blood pressure. FMD in the carotid arteries may cause headaches or pulsatile tinnitus. Potential Symptoms and Signs of FMD
FMD of Renal Arteries (Kidney):
High blood pressure [>140/90 mmHg]
Abnormal kidney function as detected on blood tests
Flank pain from dissection or infarction of the kidney
Kidney failure (rare)
Atrophy (shrinkage) of the kidney
FMD of Carotid Arteries:
Bruit (noise) heard in neck with stethoscope
Swooshing sound in ear
Ringing of the ears
Vertigo (room spinning)
Transient ischemic attack
There is no cure for FMD. Treatments are focused on managing symptoms and complications of FMD, including high blood pressure and headaches. The appropriate treatment will vary with each individual and severity, location, and extent of disease.