CEACAM5 and neoplasm: Regarding tumor markers, her level of carbohydrate antigen (CA) 19–9 was elevated by 60.2 U/ml, carcinoembryonic antigen (CEA) and duke pancreatic monoclonal antigen type 2 (DUPAN2), which is a serum marker for pancreatic cancer that when elevated, suggest the presence of malignancy, were within a normal range though.