Down syndrome

Moyamoya syndrome is sometimes seen in association with other diseases, including Down syndrome. The appearance of Moyamoya syndrome can be diagnosed via diagnostic imaging tests. 

Understanding Moyamoya Disease

Moyamoya disease is a rare vascular disease of the brain, characterized by progressive blockage of the large branches of the internal carotid artery of the brain. To feed the starved cerebral tissue caused by Moyamoya disease, the body forms a network of dilated and weakened (friable) blood vessels.  When viewed on a diagnostic cerebral angiography test, the blood vessels resemble a “puff of smoke.”  This disease was originally identified in Japanese patients.  Moyamoya is the Japanese word for the “puff of smoke” appearance.

Your Path to Health and Wellness Starts Here

The Moyamoya Center of Northwell Health Neuroscience Institute ensures the best neurological care for yourself and your family, including thorough neurological evaluations, the latest diagnostic technology and the most advanced treatment.  


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The Neuroscience Institute

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