CEACAM5 and neoplasm: SII score had a significant association with sex, BMI, NLR, PLR, carcinoembryonic antigen (CEA), Borrmann type, tumor diameter, pTNM stage, vascular infiltration, and nerve infiltration by chi‐square test in clinical and pathological features (p = 0.040, p = 0.007, p < 0.001, p < 0.001, p = 0.017, p < 0.001, p < 0.001, p < 0.001, p = 0.029, and p = 0.022) (Table 2).