Surgical decompression in the patients of pancreatic intraductal papillary mucinous neoplasm.

Intraductal papillary mucinous neoplasm (IPMN) is characterized by cystic dilatation of the main and/or branch pancreatic duct by intraductal growth of mucin-producing columnar epithelia. The malignancy is determined by the degree of epithelial dysplasia. Because most IPMNs are slow growing and the prognosis may be favorable even when the IPMN is malignant, aggressive surgical treatment is suggested after considering operative and postoperative risks. Palliative surgery should be considered in some circumstances, such as other synchronous malignancy or systemic comorbidity. Here, we report two patients with IPMN treated successfully by surgical decompression of pancreatic duct.