Q1 · Osteosarcoma
NEET PGMediumThe most common primary malignant bone tumour, typically arising around the knee in adolescents with a 'sunburst' periosteal reaction, is?
Explanation
Osteosarcoma is the most common primary malignant bone tumour, arising in adolescents around the knee (distal femur or proximal tibia), with a 'sunburst' appearance and Codman's triangle on X-ray. Treatment combines chemotherapy and surgery.