CEACAM5 and neoplasm: Tumor marker assays showed alpha-fetoprotein was 17.9 n/ml (normal 0-8.1), carcinoembryonic antigen (CEA) was 4.2 ng/ml (normal 0-5), carbohydrate antigen 19-9 (CA 19-9) was 112.5 U/ml (normal 0-37).