This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
False about Dandy Walker malformation: 
Select and explain. 
A. Hypoplasia of velmis, B. Microcephaly, C. Hydrocephalus, D. Ataxia
B: Microcephaly
Answer: B: Microcephaly 
Explanation: Dandy Walker malformation is characterized by hypoplasia of vermis and cystic expansion of 4th ventricle thus leading to hydrocephalus and macrocephaly (not microcephaly).