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
[{'content': 'Which of the following  CNS tumor can spread through CSF? \nSelect and explain. \nA. Ependymoma, B. CNS lymphoma, C. Medulloblastoma, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Tumors that spread through CSF:\n\nPinealoblastoma\nGerm cell tumors\nMedulloblastoma\nCNS lymphoma\nSome anaplastic ependymoma', 'role': 'assistant'}]