title: Elevated carcinoembryonic antigen (CEA) levels in a patient with no malignancy.
abstract: Carcinoembryonic antigen rarely exceeds serum levels of 10-12 ng/mL in benign diseases and has never been found above 24 ng/ml. We report a case in which carcinoembryonic antigen serum levels reached the value of 44.9 ng/ml without any overt reason (after 22 months of follow-up). A decline of the carcinoembryonic antigen to normal ranges was noticed after a radiolabeled anti-carcinoembryonic antigen monoclonal antibody scan was performed. The reason for this phenomenon is unclear.
authors.affiliation: Institute of Gastroenterology, Nutrition & Liver Diseases, Assaf Harofeh Medical Center, Zerifin, Israel.
authors.forename: M
authors.initials: M
authors.lastname: Shapiro
authors.forename: E
authors.initials: E
authors.lastname: Scapa
mesh_terms: D000368:Aged; D000911:Antibodies, Monoclonal; D014408:Biomarkers, Tumor / Q000097:blood / Q000378:metabolism; D002272:Carcinoembryonic Antigen / Q000097:blood / Q000378:metabolism*; D005260:Female; D006801:Humans; D009369:Neoplasms / Q000378:metabolism
chemical_list: D000911:Antibodies, Monoclonal; D014408:Biomarkers, Tumor; D002272:Carcinoembryonic Antigen