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: Radiology
Tumor associated with extracranial spread 
Select and explain. 
A. Ependymoma, B. Medulloblastoma, C. Glioblastoma multiformae, D. Choroid plexus papilloma
B: Medulloblastoma
Answer: B: Medulloblastoma 
Explanation: B i.e. Medulloblastoma