CEACAM5 and neoplasm: Among the serum tumor markers, cancer antigen 19–9 (CA19-9) was 103.9 U/ml (normal range was < 34 U/ml), carcinoembryonic antigen (CEA) was 7.1 ng/ml (normal range was < 5 ng/ml), and alpha-fetoprotein (AFP) was 12.5 ng/ml (normal range was < 20 ng/ml).