Table 3.
Tumor-node-metastasis American Joint Committee on Cancer 8th edition lung cancer
|
TNM AJCC 8th edition lung cancer
| |
|
T: Primary tumour
| |
| Tx | Not evaluable by imaging or malignant cells in sputum or bronchial lavage |
| T0 | No evidence of primary tumour |
| Tis | Carcinoma in situ |
| T1 | ≤ 3 cm surrounded by lung or visceral pleura, or lobar bronchus |
| T1a (mi) | Minimally invasive |
| T1a | ≤ 1 cm |
| T1b | > 1 cm to ≤ 2 cm |
| T1c | > 2 cm to ≤ 3 cm |
| T2 | > 3 cm to ≤ 5 cm, or involving main bronchus without affecting the carina, visceral pleura, or atelectasis or obstructive pneumonitis extending to the hilar region, affecting part or all of the lung |
| T2a | > 3 cm to ≤ 4 cm |
| T2b | > 4 cm to ≤ 5 cm |
| T3 | > 5 cm to ≤ 7 cm, or tumour nodules in the same lobe, or invasion of the chest wall (parietal pleura), phrenic nerve, parietal pericardium |
| T4 | > 7 cm, or nodules in a different ipsilateral lobe or invasion of the diaphragm, mediastinum, heart, great vessels, trachea, recurrent laryngeal nerve, esophagus, vertebral body, and carina |
| N: Regional lymph node involvement | |
| Nx | Not evaluable |
| N0 | No node involvement |
| N1 | Ipsilateral peribronchial and/or hilar and intrapulmonary nodes |
| N2 | Ipsilateral mediastinal nodes and/or subcarinal |
| N3 | Contralateral mediastinal or contralateral hilar nodes, or any scalene or supraclavicular nodes |
| M: Distant metastasis | |
| M0 | No metastasis |
| M1 | Distant metastasis |
| M1a | Nodules in contralateral lobe; pleural or pericardial or pleural or pericardial effusion |
| M1b | Single extrathoracic metastasis (including non-regional lymph node) |
| M1c | Multiple extrathoracic metastases |
TNM: Tumor-node-metastasis; AJCC: American Joint Committee on Cancer.