Although CA19-9, CA125, FER, CA242, and CEA levels were increased in benign pancreatic lesions, the expression of HCG did not increase; instead, 25.5% of HCG was increased in pancreatic cancer.[14] We also excluded the possibility of β-HCG secreted by the pituitary gland and other malignant tumors. Here, CEACAM5 is linked to pancreatic neoplasm.