“…Maire et al [91] showed, in 41 patients with IPMN, that a CEA level Ͼ200 ng/ml has a sensitivity, specificity, positive predictive value, and negative predictive value for the diagnosis of malignant IPMN of 90%, 71%, 50%, and 96%, respectively. However, another study showed that neither CEA nor cancer antigen 19 -9 were useful to distinguish malignant IPMN from benign IPMN (n ϭ 75) [92]. In summary, the role of tumor markers is still not clear, but if any, CEA seems to be the first choice.…”