The results showed that the mRNA levels of FCGR1A/B/C and FCGR3A were correlated with the tumor stages of ccRCC patients, whereas the mRNA levels of FCGR2A/B/C and FCGR3B did not markedly differ among tumor stages (Figure 2A). This evidence concerns the gene FCGR2A and nonpapillary renal cell carcinoma.