Chest Imaging

Lung cancer stage grouping

refers to the recent revisions in grouping of the TNM subsets in the international system for staging lung cancer to provide greater specifity for identifying patient groups with similar prognoses and treatment options (Table 1) (lung cancer staging).

Lung cancer stage grouping, Table 1. TNM subsets. Mountain CF, Chest 1997; 111:1712

StageTNM Subsets
0Carcinoma in situ
IAT1N0M0
IBT2N0M0
IIAT1N1M0
IIBT2N1M0
T3N0M0
IIIAT3N1M0
T1-T3N2M0
IIIBT1-T4N3M0
T4N0-N2M0
IVAny T Any M1

PG