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: Pediatrics
Porencephaly seen in - 
Select and explain. 
A. Trisomy 13, B. Fetal alcohol syndrome, C. Down syndrome, D. Dandy Walker syndrome
D: Dandy Walker syndrome
Answer: D: Dandy Walker syndrome 
Explanation: Ans. is 'd' i.e., Dandy-walker syndrome Porencephaly is the presence of cyst and cavities in the brain. o It is due to infarction. o In Dandy - walker syndrome also cyst occurs in brain due to expansion of 4th ventricle.