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: Orthopaedics
[{'content': 'All are true about osteoid osteoma except, \nSelect and explain. \nA. Is benign bone tumor, B. Painful and is not releived by salicylates, C. Bone scan shows increased uptake in the lesion, D. X-ray shows dense lesion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Painful and is releived by salicylates.', 'role': 'assistant'}]