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': 'Characteristic features of meningioma are all except – \nSelect and explain. \nA. Dural tail sign, B. Hyperostosis, C. Prominent vascularity, D. Intra–axial tumor', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Meningioma is an extra-axial tumor (not intra-axial).', 'role': 'assistant'}]