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Table 2 Enneking/MSTS staging system

From: Osteosarcoma: a review of current and future therapeutic approaches

Stage Grade Size Metastasis
IA Low T1—intracompartmental M0—none
IB Low T2—extracompartmental M0—none
IIA High T1—intracompartmental M0—none
IIB High T2—extracompartmental M0—none
III Any Any M1—regional or distant