Table 2 - Staging of esophageal cancer according to the American Joint Commission on Cancer system
From the following article
Sachin Wani and Prateek Sharma
GI Motility online (2006)
doi:10.1038/gimo45
Source: Wang et al.,82 with permission. | |
| Tumor staging for esophageal cancer | |
| T0 No evidence of primary tumor | |
| Tis Carcinoma in situ | |
| T1 Tumor invades lamina propria or submucosa | |
| T2 Tumor invades muscularis propria | |
| T3 Tumor invades adventitia | |
| T4 Tumor invades adjacent structures | |
| Nodal staging | |
| N0 No evidence of lymph nodes | |
| N1 Evidence of regional lymph nodes | |
| Metastasis | |
| M0 No evidence of distant metastasis | |
| M1 Evidence of distant metastasis | |
| M1a For lesions in the lower thorax indicates metastasis to the celiac nodes | |
| M1a For lesions in the upper thorax indicates cervical lymph nodes | |
| M1b For lesions in the midthorax indicates nonregional or other nodal groups | |
| M1b For lower esophagus or upper thorax lesions indicates distant metastasis | |
| X Designation in any area indicates that the lesion was unable to be assessed | |
| Staging of esophageal cancers | |
| Stage 0 | Tis, N0, M0 |
| Stage 1 | T1, N0, M0 |
| Stage 2a | T2–3, N0, M0 |
| Stage 2b | T1–2, N1, M0 |
| Stage 3 | T3, N1, M0 |
| T4, any N, M0 | |
| Stage 4 | Any T, any N, M1 |
| Stage 4a | Any T, any N, M1a |
| Stage 4b | Any T, any N, M1b |
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