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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Most common primary bone tumour in adult bone is: March 2011
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The correct answer is  Ans. B: Osteogenic sarcoma Of the primary bone malignancies, multiple myeloma is the commonest Osteosarcoma is the second most common, and a highly malignant primary bone tumour Osteosarcoma: Metaphyseal MC site: Lower end of femur Sunburst appearance Codman's triangle Pa:ient may present with metastasis to lungs Treefment: Chemotherapy + limb salvage surgery