A large posterior fossa cyst elevating the tentorium and straight sinus. The hypoplastic vermis is everted over the posterior fossa cyst. The cerebellar hemispheres with a winged appearance and brainstem are hypoplastic. Thinned occipital bone with occipital bossing is seen . Hypoplastic cerebellar hemispheres.
Findings are suggestive of Dandy Walker Malformation