Agenesis of cerebellar vermis,large posterior fossa with megacisterna magna is a feature of

Dandy-Walker Malformation is associated with agenesis of the cerebellar vermis, with the fouh ventricle communicating with cisterna manga producing Mega Cisterna Magna and a large Posterior Fossa. The Dandy-Walker continuum (DWC) is a spectrum of anomalies that includes Dandy-Walker malformation (DWM), vermian hypoplasia (VH),Blake pouch cyst (BPC), and mega cisterna magna (MCM).