This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pediatrics
[{'content': 'Which is not seen in tuberous sclerosis? \nSelect and explain. \nA. Astrocytoma, B. Ependymoma, C. White matter lesions, D. Subpendymal nodules', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tuberous sclerosis characterized by angiofibroma,astrocytoma,subependymal lesion and white matter lesion. Ref : Ghai essential of pediatrics, eighth edition, p.no:586', 'role': 'assistant'}]