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Updated: May 27, 2026
Robotic Duodenum-preserving Total Pancreatic Head Resection for Intraductal Papillary Mucinous Neoplasms
Published on: April 17, 2026
Main-duct intraductal papillary mucinous adenoma of the pancreas
Kensuke Takuma1, Terumi Kamisawa, Taku Tabata
1Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo, Japan.
Background:
The prevalence of carcinoma in main-duct intraductal papillary mucinous neoplasm (IPMN) is high, and surgical resection is recommended for all patients with a main-duct IPMN.
Results:
A main-duct IPMN with typical imagings including protruding lesions in the dilated main pancreatic duct was resected, but the histology was intraductal papillary mucinous adenoma of the pancreas.
Discussion:
It has been reported that the presence of mural nodules and dilatation of MPD are significantly higher in malignant IPMNs. The presented case had protruding lesions in the dilated main pancreatic duct on endoscopic ultrasonography, but the histology was adenoma.
Conclusion:
Preoperative distinction between benign and malignant IPMNs is difficult.
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