T: Primary tumor | |||
Tx | Primary tumor cannot be assessed or tumor proven by presence of malignant cells in sputum or bronchial washings but not visualized by imaging or bronchoscopy | ||
T0 | No evidence of primary tumor | ||
Tis | Carcinoma in situ | ||
T1 | Tumor ≤3 cm in greatest dimension surrounded by lung or visceral pleura without bronchoscopic evidence of invasion more proximal than the lobar bronchus (ie, not in the main bronchus)* | ||
T1a(mi) | Minimally invasive adenocarcinoma¶ | ||
T1a | Tumor ≤1 cm in greatest dimension* | ||
T1b | Tumor >1 cm but ≤2 cm in greatest dimension* | ||
T1c | Tumor >2 cm but ≤3 cm in greatest dimension* | ||
T2 | Tumor >3 cm but ≤5 cm or tumor with any of the following features:Δ
| ||
T2a | Tumor >3 cm but ≤4 cm in greatest dimension | ||
T2b | Tumor >4 cm but ≤5 cm in greatest dimension | ||
T3 | Tumor >5 cm but ≤7 cm in greatest dimension or associated with separate tumor nodule(s) in the same lobe as the primary tumor or directly invades any of the following structures: chest wall (including the parietal pleura and superior sulcus tumors), phrenic nerve, parietal pericardium | ||
T4 | Tumor >7 cm in greatest dimension or associated with separate tumor nodule(s) in a different ipsilateral lobe than that of the primary tumor or invades any of the following structures: diaphragm, mediastinum, heart, great vessels, trachea, recurrent laryngeal nerve, esophagus, vertebral body, and carina | ||
N: Regional lymph node involvement | |||
Nx | Regional lymph nodes cannot be assessed | ||
N0 | No regional lymph node metastasis | ||
N1 | Metastasis in ipsilateral peribronchial and/or ipsilateral hilar lymph nodes and intrapulmonary nodes, including involvement by direct extension | ||
N2 | Metastasis in ipsilateral mediastinal and/or subcarinal lymph node(s) | ||
N3 | Metastasis in contralateral mediastinal, contralateral hilar, ipsilateral or contralateral scalene, or supraclavicular lymph node(s) | ||
M: Distant metastasis | |||
M0 | No distant metastasis | ||
M1 | Distant metastasis present | ||
M1a | Separate tumor nodule(s) in a contralateral lobe; tumor with pleural or pericardial nodule(s) or malignant pleural or pericardial effusion◊ | ||
M1b | Single extrathoracic metastasis§ | ||
M1c | Multiple extrathoracic metastases in one or more organs | ||
Stage groupings | |||
Occult carcinoma | TX | N0 | M0 |
Stage 0 | Tis | N0 | M0 |
Stage IA1 | T1a(mi) | N0 | M0 |
T1a | N0 | M0 | |
Stage IA2 | T1b | N0 | M0 |
Stage IA3 | T1c | N0 | M0 |
Stage IB | T2a | N0 | M0 |
Stage IIA | T2b | N0 | M0 |
Stage IIB | T1a to c | N1 | M0 |
T2a | N1 | M0 | |
T2b | N1 | M0 | |
T3 | N0 | M0 | |
Stage IIIA | T1a to c | N2 | M0 |
T2a to b | N2 | M0 | |
T3 | N1 | M0 | |
T4 | N0 | M0 | |
T4 | N1 | M0 | |
Stage IIIB | T1a to c | N3 | M0 |
T2a to b | N3 | M0 | |
T3 | N2 | M0 | |
T4 | N2 | M0 | |
Stage IIIC | T3 | N3 | M0 |
T4 | N3 | M0 | |
Stage IVA | Any T | Any N | M1a |
Any T | Any N | M1b | |
Stage IVB | Any T | Any N | M1c |
Do you want to add Medilib to your home screen?