This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous System, Subject name: Pathology
True about turcot syndrome 
Select and explain. 
A. Mutations in PTEN gene, B. CNS tumors, C. Non neoplastic polyps, D. Congenital hypertrophy of retinal pigment epithelium
B: CNS tumors
Answer: B: CNS tumors 
Explanation: Ans. (b) CNS tumors(Ref: Russell & Rubinstein's Pathology of Tumors of the Nervous System 7Ed, pg 997)Turcot syndrome is characterised by:*Intestinal polyposis*CNS tumours: glioblastoma or medulloblastoma