Laboratory tests revealed elevated hepatobiliary enzymes (aspartate aminotransferase 62 U/L, alanine aminotransferase 106 U/L, alkaline phosphatase 296 U/L), total bilirubin (13.8 mg/dL), and tumor markers (carcinoembryonic antigen 9.6 ng/mL, carbohydrate antigen 19–9 172.2 U/mL). Here, CEACAM5 is linked to neoplasm.