Use of cyst fluid CEA, CA19-9, and amylase for evaluation of pancreatic lesions

Results CEA > 30 ng/mL discriminates mucinous from non-mucinous cysts. After CEA analysis, amylase and CA19-9 segregate non-mucinous and mucinous subtypes, respectively. Conclusions Pancreatic cyst fluid tumor markers supplement other diagnostic measures. This study provides estimated reference intervals and an algorithm for interpretation. Keywords Pancreatic cancer Tumor markers Mucinous cysts Carcinoembryonic antigen Amylase