Bone cancers have an AJCC staging chapter, but in practice osteosarcoma is usually grouped simply as localised or metastatic, because that is what changes treatment.
AJCC chapter 38 covers primary bone tumours and is an 8th edition chapter in the AJCC 2026 table. The NCI's patient summary for osteosarcoma states that instead of being grouped by stage, osteosarcoma and undifferentiated pleomorphic sarcoma of bone are grouped as localised or metastatic. The contents of the AJCC chapter were not read for this record.
Bone sarcomas favour the fast-growing ends of long bones (osteosarcoma) or the shaft (Ewing), soft tissue sarcomas the deep muscle compartments; spread is through the blood to the lungs, rarely via lymph nodes.
Lymph node spread is rare (except epithelioid, synovial, clear cell and rhabdomyosarcoma); sarcomas go through the blood to the lungs.
Same organ: Adamantinoma of bone, Dedifferentiated chordoma, Poorly differentiated chordoma (SMARCB1-deficient), Desmoplastic small round cell tumour, Leiomyosarcoma, Liposarcoma, Synovial sarcoma, Sarcomas (soft tissue, bone, GIST), Ewing sarcoma, Rhabdomyosarcoma, Chordoma, Desmoid tumour, Tenosynovial giant cell tumour (TGCT), Epithelioid sarcoma, Vascular tumours (angiosarcoma, epithelioid haemangioendothelioma, kaposiform haemangioendothelioma), Chondrosarcoma, Angiosarcoma, Undifferentiated pleomorphic sarcoma (UPS), Myxofibrosarcoma, Alveolar soft part sarcoma, Perivascular epithelioid cell tumour (PEComa), Epithelioid haemangioendothelioma, Malignant peripheral nerve sheath tumour (MPNST), Retroperitoneal sarcoma, Soft tissue sarcoma of the extremity (localised and advanced)
Showing the organ this term concerns: Osteosarcoma.
Shares Disease-specific staging and risk systems (FIGO, Ann Arbor, IPI, R-ISS, ELN, IMDC), TNM staging.
Shares Disease-specific staging and risk systems (FIGO, Ann Arbor, IPI, R-ISS, ELN, IMDC), TNM staging.
Shares Disease-specific staging and risk systems (FIGO, Ann Arbor, IPI, R-ISS, ELN, IMDC), TNM staging.
Shares Disease-specific staging and risk systems (FIGO, Ann Arbor, IPI, R-ISS, ELN, IMDC), TNM staging.
Shares Disease-specific staging and risk systems (FIGO, Ann Arbor, IPI, R-ISS, ELN, IMDC), TNM staging.
Shares Disease-specific staging and risk systems (FIGO, Ann Arbor, IPI, R-ISS, ELN, IMDC), TNM staging.
Shares Disease-specific staging and risk systems (FIGO, Ann Arbor, IPI, R-ISS, ELN, IMDC), TNM staging.
Shares Disease-specific staging and risk systems (FIGO, Ann Arbor, IPI, R-ISS, ELN, IMDC), TNM staging.
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