label: Elevated circulating carcinoembryonic antigen concentration
label_lc: elevated circulating carcinoembryonic antigen concentration
description: "Concentration of the carcinoembryonic antigen (CEA) in the blood circulation above the upper limit of normal. CEA is a member of the immunoglobulin supergene family. The human CEA gene family is clustered on chromosome 19q and comprises 29 genes. CEA is highly expressed in embryonic tissue and in some cancers, and is a widely used tumor marker."