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 is not seen in tuberous sclerosis? \nSelect and explain. \nA. Giant cell astrocytoma, B. Subependymal nodule, C. White matter lesion, D. Ependymoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. d. Ependymoma', 'role': 'assistant'}]