Furthermore, increased PIK3CG expression level was correlated with an improved OS in stage I, II and III patients with ccRCC [HR 95% CI = 0.53 (0.28–1.00); 0.29 (0.08–1.00); 0.31 (0.17–0.54), respectively]. Here, PIK3CG is linked to nonpapillary renal cell carcinoma.