The following IMPs were all present in mixed IPMN and not detected in BD-IPMN samples: eotaxin 3, GM-CSF, I-309, IL-5, IL-9, IL-17, lymphotactin, TGF-β1, TGF-β2, TGF-β3, TNF-β, SCF, TPO, and TSLP. This evidence concerns the gene XCL1 and pancreatic intraductal papillary-mucinous neoplasm.