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: Surgery
Bone tumour arising from metaphysis: September 2012 
Select and explain. 
A. Osteogenic sarcoma, B. Ewing sarcoma, C. Osteoclastoma, D. Osteoid osteoma
A: Osteogenic sarcoma
Answer: A: Osteogenic sarcoma 
Explanation: Ans. A i.e. Osteogenic sarcoma Osteosarcoma Location: Metaphysis MC site in body: Lower end of femur X-ray appearance: - Sunburst appearance, - Codman's triangle Special feature: Secondaries in lungs Treatment: - Chemotherapy, - Limb salvage surgery