Osteosarcoma, primary site

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

A usually aggressive malignant bone-forming mesenchymal tumour, predominantly affecting adolescents and young adults. It usually involves bones and less frequently extraosseous sites. It often involves the long bones (particularly distal femur, proximal tibia, and proximal humerus). Pain with or without a palpable mass is the most frequent clinical symptom. It may spread to other anatomic sites, particularly the lungs.

sections/codes in this section (2B51-2B51)

• Osteosarcoma of bone or articular cartilage of jaw  (2B51.0)
• Osteosarcoma of bone or articular cartilage of limbs  (2B51.1)
• Osteosarcoma of bone or articular cartilage of pelvis  (2B51.2)
• Osteosarcoma of bone and articular cartilage of other specified sites  (2B51.Y)
• Osteosarcoma of bone and articular cartilage of unspecified sites  (2B51.Z)

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