ABSTRACT
Dandy-Walker syndrom was described by blackfan, dandy in 1914. Dandy-Walker syndrome is characterized by a triad of complete or partial agenesis of the cerebellar vermis, cystic dilatation of the forth ventricle and enlarged posterior fossa with upward displacement of the transvers sinus, tentorium and torcular. The most striking abnormality is the presence of a huge dilated f...