Stage IIB Osteosarcoma AJCC v7

**Semantic type:** Neoplastic Process

**Definition:** Stage IIB includes: T2, N0, M0, G3, G4. T2: Tumor more than 8 cm in greatest dimension. N0: No regional lymph node metastasis. M0: No distant metastasis. G3: Poorly differentiated. G4: Undifferentiated. (AJCC 7th ed.)

**Synonyms:** - Stage IIB Osteogenic Sarcoma - Stage IIB Osteosarcoma