Stage IIA Osteosarcoma AJCC v7

**Semantic type:** Neoplastic Process

**Definition:** Stage IIA includes: T1, N0, M0, G3, G4. T1: Tumor 8 cm or less in greatest dimension. N0: No regional lymph node metastasis. M0: No distant metastasis. G3: Poorly differentiated. G4: Undifferentiated. (AJCC 7th ed.)

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