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What Is Dandy-Walker Syndrome?

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Sarah K. Lee

Definition: Dandy-Walker Syndrome is a congenital condition affecting the cerebellum, an area in the lower back of the brain. Excess fluid in the areas surrounding the cerebellum impairs the brain's ability to control movement, and can also cause hydrocephalus and intracranial pressure. Other common features of the syndrome include an absence of the area between the hemispheres of the cerebellum, and a cyst at the base of the skull. It may be diagnosed at birth due to enlarged head size, or later in infancy or childhood when motor-skill problems appear. There is no cure, but treatment is available to lessen the impact of the symptoms. For more information, visit our list of resources.

Alternate Spellings: Dandy Walker Syndrome

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