CEACAM5 and neoplasm: The laboratory data showed elevated levels of hepatobiliary enzymes [aspartate transaminase (AST) 40 IU/l (normal range; 13–40 IU/l), alkaline phosphatase (ALP) 612 IU/l (106–322 IU/l), γ-glutamyl transpeptidase (GTP) 92 IU/l (13–64 IU/l)] and tumor markers [carcinoembryonic antigen (CEA) 8.4 ng/ml (− 5.2 ng/ml), CA19-9 304.9 U/ml (− 36.8 U/ml)].