Question Number 1083 Question: An 8 year old boy with mild intellectial impairment has frequent episodes of episodes of hemiparesis and transient ischemic attacks precipitated by physical exercise. He undergoes cerebral angiography which showed occlusion of the supra-clinoid portion of both internal carotid arteries with perforator branches arising from the circle of Willis. The patient's dominant cerebral blood supply was via the left vertebral artery. A likely diagnosis is a) Moya Moya disease |
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