CEACAM5 and neoplasm: Four epithelium originated tumor biomarkers, CA19-9, CA 125, CEA and SCC were compared across the two groups, CA19-9 were significantly higher in patients with IEC (mean 339.7,SD 2082.3 U/mL; median 20.3 ng/mL, IQR 39.1)than in healthy controls (mean 7.0,SD 4.1 U/mL; median 6.5 ng/mL, IQR 5.0)(p < 0.001; Table 1, Figure 2).