Descriptor in 7th edition | Descriptor in 8th edition | N categories: 8th edition (7th edition) | |||
Overall stage | |||||
N0 | N1 | N2 | N3 | ||
T1 ≤1 cm | T1a | IA1 (IA) | IIB (IIA) | IIIA | IIIB |
T1 >1 to 2 cm | T1b | IA2 (IA) | IIB (IIA) | IIIA | IIIB |
T1 >2 to 3 cm | T1c | IA3 (IA) | IIB (IIA) | IIIA | IIIB |
T2 >3 to 4 cm | T2a | IB | IIB (IIA) | IIIA | IIIB |
T2 >4 to 5 cm | T2b | IIA (IB) | IIB (IIA) | IIIA | IIIB |
T2 >5 to 7 cm | T3 | IIB (IIA) | IIIA (IIB) | IIIB (IIIA) | IIIC (IIIB) |
T3 structures | T3 | IIB | IIIA | IIIB (IIIA) | IIIC (IIIB) |
T3 >7 cm | T4 | IIIA (IIB) | IIIA | IIIB (IIIA) | IIIC (IIIB) |
T3 diaphragm | T4 | IIIA (IIB) | IIIA | IIIB (IIIA) | IIIC (IIIB) |
T3 endobronchial: location/atelectasis 3 to 4 cm | T2a | IB (IIB) | IIB (IIIA) | IIIA | IIIB |
T3 endobronchial: location/atelectasis 4 to 5 cm | T2b | IIA (IIB) | IIB (IIIA) | IIIA | IIIB |
T4 | T4 | IIIA | IIIA | IIIB | IIIC (IIIB) |
M1a | M1a | IVA (IV) | IVA (IV) | IVA (IV) | IVA (IV) |
M1b single lesion | M1b | IVA (IV) | IVA (IV) | IVA (IV) | IVA (IV) |
M1c multiple lesions | M1c | IVB (IV) | IVB (IV) | IVB (IV) | IVB (IV) |