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: Pathology
Medulloblastoma most common metastasis is to ? 
Select and explain. 
A. Lung, B. CNS, C. Liver, D. Spleen
B: CNS
Answer: B: CNS 
Explanation: Ans. is 'b' i.e., CNS o Medullablastoma spread through CSF and frequently metastasizes to different locations in the brain and spine. o Extraneural metastasis to the rest of the body is rare.