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Surgical Management of Intraductal Papillary Mucinous Tumors of the Pancreas
The Role of Routine Frozen Section of the Surgical Margin, Intraoperative Endoscopic Staged Biopsies of the Wirsung Duct, and Pancreaticogastric Anastomosis
Jean-François Gigot, MD,PhD;
Pierre Deprez, MD;
Christine Sempoux, MD,PhD;
Charles Descamps, MD;
Sylvie Metairie, MD;
David Glineur, MD;
Pierre Gianello, MD,PhD
Arch Surg. 2001;136:1256-1262.
Hypothesis Resection of intraductal papillary mucinous tumors of the pancreas (IPMTP) should be tailored to longitudinal spreading into the pancreatic ductal system and the presence of malignant transformation.
Objective To review a single institutional experience with IPMTP, focusing on the operative strategy of tailoring resection to the extent of disease.
Design Retrospective study.
Setting Academic tertiary referral center.
Patients Thirteen patients with IPMTP were referred for resection during the past 10 years. Malignant growth was present in 7 patients (54%). According to the determination of tumor extent, distal pancreatic resection was performed in 3 patients, pancreatoduodenectomy was done in 9 patients, and total pancreatectomy was performed in 1 patient. The median follow-up time in this series was 46 months (range, 3-104 months).
Main Outcome Measures Preoperative and perioperative diagnosis, final pathologic results, and long-term outcome.
Results A correct preoperative or perioperative diagnosis of IPMTP was achieved in 9 patients (69%). Routine frozen section of the surgical margin was used in all patients, changing the operative strategy in 3 (23%) of 13 patients by extending resection or leading to total pancreatectomy in 2 patients and 1 patient, respectively. A perioperative endoscopic examination of the Wirsung duct was performed in 3 patients with a correct preoperative or perioperative diagnosis of IPMTP and a dilated pancreatic duct. This allowed the examination of the entire pancreatic ductal system and staged intraductal biopsies, changing the operative strategy in 1 of these patients. Finally, after pancreatoduodenectomy, pancreaticogastric anastomosis was constructed in 5 patients, allowing endoscopic assessment of the pancreatic stump during long-term follow-up. The 5-year actuarial survival rate was 56.8% in the whole series. All patients with benign or microinvasive malignant disease remained disease-free, whereas all patients with invasive malignant disease died of tumor recurrence.
Conclusions Accurate determination of the extent of ductal disease and residual malignant growth, when present, is critical during surgical exploration to achieve radical resection and cure. Operative strategy should be based on routine frozen section of the surgical margin and perioperative endoscopic examination of the Wirsung duct with staged intraductal biopsies when technically feasible. The routine use of pancreaticogastric anastomosis after pancreatoduodenectomy allows easy, safe, and efficient long-term endoscopic assessment of the pancreatic stump.
From the Departments of Digestive Surgery (Drs Gigot, Metairie, Glineur, and Gianello), Gastroenterology (Drs Deprez and Descamps), and Pathology (Dr Sempoux), St-Luc University Hospital, Universite Catholique de Louvain, Brussels, Belgium
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