Wyburn Mason Syndrome
National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Wyburn Mason Syndrome is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
Wyburn-Mason syndrome is an extremely rare nonhereditary disorder that is present at birth (congenital). Affected infants have arteriovenous malformations (AVMs), which are developmental abnormalities affecting the blood vessels, specifically the arteries, veins and capillaries. Arteries typically carry oxygen-rich blood from the heart to body cells, while veins transport oxygen-deficient blood to the heart and lungs for the exchange of oxygen and carbon dioxide. The network of very tiny blood vessels (capillaries) that normally connects arteries and veins may be absent and the arteries and veins may be directly linked together. Larger AVMs may consist of a tangled mass of abnormal or malformed blood vessels. AVMs associated with Wyburn-Mason syndrome are usually found in the eyes and midbrain. The exact cause of Wyburn-Mason syndrome is unknown.
Genetic and Rare Diseases (GARD) Information Center
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March of Dimes Birth Defects Foundation
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NIH/National Eye Institute
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NIH/National Institute of Neurological Disorders and Stroke
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National Organization of Vascular Anomalies
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- Greensboro, NC 27438-8216
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It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report
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Last Updated: 1/20/1970
Copyright 2010 National Organization for Rare Disorders, Inc.
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