Table 6 AJCC staging system (adapted from the AJCC Cancer Staging Forms, 7th Edition)
From: The role of magnetic resonance imaging in the evaluation of bone tumours and tumour-like lesions
American Joint Committee on Cancer(AJCC) staging system | ||||
|---|---|---|---|---|
Stage | Primary tumour (T) | Regional lymph nodes (N) | Distant metastasis (M) | Histologic grade (G) |
Stage IA | T1 | N0 | M0 | G1, 2 (low grade) |
Stage IB | T2 T3 | N0 N0 | M0 N0 | G1, 2 (low grade) |
Stage IIA | T1 | N0 | M0 | G3, 4 (high grade) |
Stage IIB | T2 | N0 | M0 | G3, 4 (high grade) |
Stage III | T3 | N0 | M0 | G3, 4 (high grade) |
Stage IVA | Any T | N0 | M1a | Any G |
Stage IVB | Any T Any T | N1 Any N | Any M M1b | Any G Any G |