All of the following are true about Dandy Walker malformation EXCEPT?: (A) It is due to the failure of opening of foramen of Magendie, (B) 4th ventricle forms a cyst in the posterior fossa, (C) Cerebellum remains normal, (D) Delayed development and spasticity may be seen.
Answer is C. Dandy Walker malformation: It is d/t failure of opening of foramen of Magendie Results in balooning of posterior wall of 4th ventricle to form a cyst in posterior fossa. Associated with other cerebral & cerebellar anomalies . - Clinical features : Delayed development, spasticity and cerebellar ataxia.