Levels of tumor markers CEA/CA 19-9 in serum and peritoneal lavage predict postoperative recurrence in patients with pancreatic cancer.

pCA 19-9 is a reliable marker for predicting postoperative recurrence in patients with pancreatic cancer after surgery. Further risk stratification can be achieved by using combination assays. The combination of pCA 19-9 and sCA19-9 also serves as a predictor of recurrence site-specific recurrence.