Briefly, the proportions of males, elevated CEA level, LND <12, and T3 in the RT+S group were all higher than those in the S group (all p < 0.05, Table 1), while the rates of tumor differentiation grades III/IV, TD, PNI, stage III, and N1/2 were lower in the RT+S group than in the S group (all p < 0.05, Table 1). This evidence concerns the gene CEACAM5 and neoplasm.