TNM classification of oesophageal and gastric cancer73
| Classification | Oesophagus | Gastric |
|---|---|---|
| T1 | Lamina propria, submucosa | Lamina propria, submucosa |
| T2 | Muscularis propria | Muscularis propria, subserosa |
| T3 | Adventitia | Penetrates serosa |
| T4 | Adjacent structures | Adjacent structures |
| N1 | Regional nodes | 1–6 nodes |
| N2 | 7–15 nodes | |
| N3 | >15 nodes | |
| M1 | Distant metastasis | Distant metastasis |
| Tumours of lower oesophagus | ||
| M1a | Coeliac nodes | |
| M1b | Other distant metastasis | |
| Tumours of mid thoracic oesophagus | ||
| M1b | Distant metastasis including non-regional lymph nodes | |
| Tumours of upper thoracic oesophagus | ||
| M1a | Cervical nodes | |
| M1b | Other distant metastasis | |