Dandy-Walker Syndrome (DWS), named after the physicians Walter Dandy and Arthur Walker, is a congenital brain malformation that primarily affects the cerebellum, which is responsible for coordinating movement, balance, and fine motor skills. In Dandy-Walker Syndrome, part of the cerebellum called the cerebellar vermis is either underdeveloped or entirely absent. This malformation often results in the enlargement of the fourth ventricle-a cavity in the brain that contains cerebrospinal fluid...