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
Wide diploic space of skull with brush border (hair on end) appearance is characteristic of 
Select and explain. 
A. Congenital haemolytic anaemia, B. Multiple myeloma, C. Raised intracranial tension, D. Meningioma
A: Congenital haemolytic anaemia
Answer: A: Congenital haemolytic anaemia 
Explanation: A i.e. Congenital hemolytic anemia