This multicenter retrospective observational cohort study seeks to: 1. Classify surgical intent in patients with resected Intraductal Papillary Mucinous Neoplasms (IPMN) and quantify the proportion of IPMN-associated cancers diagnosed as overt pancreatic cancer with incidental IPMN association on pathology. 2. Compare clinicopathologic features and outcomes between surveillance-detected and incidentally detected IPMN-derived pancreatic cancers. 3. Revise and redefine risk features limited to patients undergoing surgery for IPMN-related indications, identifying optimal predictors of malignant IPMN (high-grade dysplasia or invasive cancer).