On univariate analyses for the OS, possible prognostic factors, including the age (p = 0.003), sex (p = 0.003), CEA (p = 0.011), tumor location (p = 0.068), LNR (p < 0.001), lymphatic invasion (p = 0.009), vascular invasion (p = 0.038), and tumor diameter (p = 0.047), were selected for multivariate analyses. The gene discussed is CEACAM5; the disease is neoplasm.