This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: Orthopaedics
A patient presents with pain in the thigh, relieved by aspirin. X-ray shows a radiolucent mass surrounded by sclerosis. Diagnosis is - 
Select and explain. 
A. Osteoma, B. Osteoid osteoma, C. Osteoblastoma, D. Osteoclastoma
B: Osteoid osteoma
Answer: B: Osteoid osteoma 
Explanation: Radioluscent lesion with surrounded sclerosis and pain relived by a salicylate are characteristic of Osteoid osteoma Refer Maheshwari 9TH ED p 235