In our historical cohort of patients with lung cancer (n=393), whose tumors were preclassified on the basis of the density of cells expressing CXCL9 (M1hot, M1intermediate, M1cold), we determined the density of cells expressing CD103, a marker of TRM cells (TRMhigh, TRMint or TRMlow). This evidence concerns the gene CXCL9 and lung carcinoma.