fibromuscular dysplasia (MONDO_0006761, a Monarch Disease Ontology entry) is a disorder characterized by fibrous thickening of the arterial wall resulting in narrowing of the arterial lumen. It most often affects the renal artery and less often the carotid artery and abdominal arteries. It can cause hypertension and aneurysm formation. Also known as: FMDA, fibromuscular dysplasia of arteries.