| I |
No evidence of metastasis |
| IM |
Rising concentrations of serum markers with no other evidence of metastasis |
| II |
Abdominal node metastasis |
| • A |
<2 cm in diameter |
| • B |
2–5 cm in diameter |
| • C |
>5 cm in diameter |
| III |
Supra‐diaphragmatic nodal metastasis |
| • M |
Mediastinal |
| • N |
Supraclavicular, cervical or axillary |
| • O |
No abdominal node metastasis |
| • ABC |
Node stage as defined in stage II |
| IV |
Extra lymphatic metastasis |
| Lung |
|
| • L1 |
<3 metastases |
| • L2 |
3 metastases or more, <2 cm in diameter |
| • L3 |
3 metastases or more, one or more of which >2 cm in diameter |
| H+: liver metastases; Br+: brain metastases; Bo+: bone metastases |
