We also studied if MAGE-B2, MAGE-C2, MAGE-A4 or MAGE-A6 gene expression could provide prognostic power over the traditional prognostic factors in the ccRCC cohort, but the additional prognostic value of the gene expression was very limited (Figure 11A). This evidence concerns the gene MAGEC2 and nonpapillary renal cell carcinoma.