This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous System, Subject name: Pediatrics
[{'content': 'Lisch nodule is seen in? \nSelect and explain. \nA. Tuberous sclerosis, B. Sturge-Weber syndrome, C. Neurofibromatosis, D. Wilson disease', 'role': 'user'}, {'content': "Answer: C \nExplanation: c. Neurofibromatosis(Ref: Nelson's 20/e p 2874, Ghai 8/e p 586)Important clinical features of Neurofibromatosis (NF1) are cafe-au-lait spots, neurofibromas, axillary freckling, Lisch nodules optic glioma and positive family history", 'role': 'assistant'}]