T-staging positively correlated with the CEA level (ρ = 0.423, p < 0.001), expression of CA19-9 (ρ = 0.305, p < 0.001), wall deformity (ρ = 0.642, p < 0.001), blurred outer edge of the intestine (ρ = 0.486, p < 0.001), fat infiltration (ρ = 0.597, p < 0.001), infiltration into the surrounding tissue (ρ = 0.296, p < 0.001), tumor size (ρ = 0.547, p < 0.001), and wall thickness (ρ = 0.335, p < 0.001). This evidence concerns the gene CEACAM5 and neoplasm.