A rare cause of ischemic stroke: fibromuscular dysplasia.

Childhood ischemic stroke is uncommon and may be associated with many causes and require extensive evaluation. Fibromuscular dysplasia is a rare cause of unknown etiology of childhood stroke which is mostly related with renovascular hypertension and in adults about 85% of cases renal artery has been involved, whereas the intracerebral circulation is the main area affected in children and the documented cause of stroke. We report a 4-year-old girl who presented with facial paralysis and diagnosed as intracranial fibromuscular dysplasia without renal artery involvement.