FCN1 and hepatocellular carcinoma: and the results showed that only FCN3 showed significant correlation with OS in HCC (p < 0.05); FCN1 and FCN3 showed significant correlation with PFS and RFS in HCC (p < 0.05); while the expression of FCN2 in HCC was significantly correlated with OS, PFS and RFS were not significantly correlated (p > 0.05) (Figure 5A).