Which of the following is not true about osteosarcoma?
ASeen in the metaphyseal region of the long bones
BLung metastasis is common
CSecondary osteosarcoma is seen in older age groups
DMost commonly arises in the epiphyseal region
N3a TNM staging of head and neck tumors (AJCC 8th edition) shows:
AMetastasis in a lymph node >6 cm
BMetastasis in lymph nodes >2 cm
CMetastasis in lymph nodes >5 cm
DNone of the options
What is the most common primary bone tumor in adults?
AChondrosarcoma
BEwing's sarcoma
CAdamantinoma
DOsteogenic sarcoma
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