This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection of Bones & Joints, Subject name: Orthopaedics
[{'content': 'Brodie abscess most commonly seen in: \nSelect and explain. \nA. Epiphysis, B. Metaphysis, C. Diaphysis, D. Epiphyseal cartilage', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans: b (Metaphysis) Ref: Maheswari, 3rd ed, (Rev)p. 163BRIDGENagging pain worse at night, relieved by salicylates is suggestive of osteoid osteomaBrodies abscess is most commonly seen in metaphysis of bone.Brodie abscess:Age group -10-20 yrsSites - upper end of tibia, lower end of femur- metaphysicSymptoms-Deep boring pain, worse at night relieved by rest.X-raycircular or oval lucent area surrounded by sclerosis.TreatmentSurgical excavation, curettage & packing with cancellous bone chips.Bony lesions with site of originMetaphysisDiaphysisEpiphysisOsteosarcomaOsteomyelitisBrodies abscessEwing sarcomaOsteiod osteomaMultiple myelomaSecondariesLymphomaAdamantinomaOsteoclastomaChondroblastomas', 'role': 'assistant'}]