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: Radiology
[{'content': 'Wide diploic space of skull with brush border (hair on end) appearance is characteristic of \nSelect and explain. \nA. Congenital haemolytic anaemia, B. Multiple myeloma, C. Raised intracranial tension, D. Meningioma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Congenital hemolytic anemia', 'role': 'assistant'}]