Notably, the values of the CYF211 and NSE tumor markers (4.18 ± 0.42 ng/ml and 25.46 ± 11.99 ng/ml, respectively) were significantly higher in the tumor patients with the rs2131877 T/C+C/C genotype (p = 0.014 and p = 0.031, respectively) (Table 2). This evidence concerns the gene ENO2 and neoplasm.