NCIt definition : A cell-surface glycopeptide epitope potentially derived from carcinoembryonic antigen-related
cell adhesion molecule 5 (CEACAM5; CEA; CD66e). This antigen is specifically expressed
in gastric cancer and may be useful as a marker for gastric cancer, precancerous stomach
lesions and Helicobacter pylori (H. pylori)-associated gastric diseases.;