This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neurocutaneous syndromes, Subject name: Pediatrics
[{'content': '"Rail Road pattern" in Neuroimaging is seen in :- \nSelect and explain. \nA. Tuberous sclerosis, B. Sturge weber syndrome, C. Ataxia Telengiectasia, D. Neurofibromatosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Powine stain is in the distribution of the first branch of the trigeminal nerve is a/w ipsilateral rail road pattern (also known as tram track pattern) of intracranial calcification and glaucoma. -presentation is with contralateral hemiparesis , focal seizures and/or intellectual disability features of Sturge:- weber syndrome includes (a) intracranial calcifications in left hemisphere on CT. ; and (b)Hemi-facial angioma or po wine stain', 'role': 'assistant'}]