Significantly higher STAT6 immunoexpression level was observed in all histopathological non-small-cell lung cancer (NSCLC) subtypes (squamous cell carcinoma, adenocarcinoma, and large-cell carcinoma), especially higher expression found in squamous cell carcinoma than in large-cell carcinoma (10, 11). This evidence concerns the gene STAT6 and non-small cell lung carcinoma.