Besides CEA, several other glycoproteins of the carcinoembryonic antigen-related cell adhesion molecule (CEACAM) family are emerging as cancer biomarkers, such as CEACAM1, CEACAM5 (synonym of CEA) and CEACAM6 for pancreatic cancer [119, 120]. Here, CEACAM5 is linked to familial pancreatic carcinoma.