This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Pathology
[{'content': "All of the following are examples of a round cell tumor, except: \nSelect and explain. \nA. Neuroblastoma, B. Ewing's sarcoma, C. Medulloblastoma, D. haemangioblastoma", 'role': 'user'}, {'content': 'Answer: D \nExplanation: The differential diagnosis of small round cell tumors include: Neuroblastoma Wilms tumor Lymphoma Rhabdomyosarcoma Ewing sarcoma/primitive neuroectodermal tumor Medulloblastoma Retinoblastoma neuroblastoma Ewing sarcoma Haemangioblastoma is CNS tumor showing proliferation of capillaries and thin walled vessels.', 'role': 'assistant'}]