TOPIC: RANDOM MIX
A 15-year-old boy presents with severe night pain in his proximal tibia that is dramatically relieved by NSAIDs. Radiographs show a small radiolucent nidus surrounded by dense reactive sclerosis. What is the most likely diagnosis?
A
Osteoid osteoma
B
Osteoblastoma
C
Ewing sarcoma
D
Chondroblastoma