The concordance rate of EUS and cyst fluid analysis with CEA cutoff point>192 ng/mL was 52.5% and 69.2%, respectively, for mucinous cystic neoplasm (MCN) and Intraductal papillary mucinous neoplasm (IPMN) diagnosis. Here, CEACAM5 is linked to pancreatic intraductal papillary-mucinous neoplasm.