<prompt> About Dandy-Walker syndrome, true is:Mostly have hydrocephalusCystic expansion of 4th ventricleMid cerebellar hypoplasiaAll are true  <response>: d. All are trueRef: Nelsons 20e p 2815-2816Dandy Walker malformationCystic expansion of 4th ventricle and midline cerebellar hypoplasia seen; 90 patients have hydrocephalusPapilledema, pyramidal tract signs and cranial nerve palsies may occur along with symptoms of raised ICP.It is managed by shunting the cystic cavity in the presence of hydrocephalus. 