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The most common malignant lesion of bone:

 # The most common malignant lesion of bone:
A. Osteosarcoma
B. Metastatic carcinoma
C. Osteochondroma
D. None of the above



The correct answer is A. Osteosarcoma.

 The most common primary malignant bone tumors are osteosarcoma (35%), chondrosarcoma (25%), and Ewing's sarcoma (16%). Less frequently (≤ 5%) occurring tumors are chordoma, malignant fibrous histiocytoma of bone, and fibrosarcoma of bone.



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