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: Pathology
[{'content': 'Sturge Weber syndrome is characterized by all EXCEPT: \nSelect and explain. \nA. Exophytic oral hemangioma, B. Facial hematoma, C. Tramline calcification of dura on lateral cephalogram, D. Facial hemangionna', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]