'UNMIXING' Mixed-Type Intraductal Papillary Mucinous Neoplasms-Rethinking Malignancy Risk Beyond Radiological Appearance - PubMed
5 hours ago
- #Surgical Oncology
- #Pancreatic Malignancy
- #IPMN
- Malignancy rate in resected mixed-type IPMNs is 46.5%, lower than main-duct IPMNs (79.2%).
- Without high-risk stigmata, mixed-type IPMN malignancy rate drops to 24.7%, similar to branch-duct IPMNs (20.2%).
- In one-third of radiological mixed-type IPMNs, post-surgery pathology shows no main pancreatic duct involvement.
- Main pancreatic duct dilation alone results in 6.3% malignancy risk, increasing significantly with multiple features or larger dilation.
- Mixed-type IPMNs are highly heterogeneous, questioning current surgical selection and risk stratification methods.