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. 2015 Mar;25(3):579-83.
doi: 10.1007/s11695-015-1571-4.

Incidental finding of GIST during obesity surgery

Sonja Chiappetta  1 , Sophia Theodoridou, Christine Stier, Rudolf A Weiner
Affiliations

Incidental finding of GIST during obesity surgery

Sonja Chiappetta et al. Obes Surg. 2015 Mar.

Abstract

Background: The purpose of this study was to review the incidence of incidental gastrointestinal stromal tumors (GISTs) in a cohort of morbidly obese patients undergoing laparoscopic sleeve gastrectomy (LSG) or Roux-en-Y gastric bypass (RYGB), analyzing surgery indication, morbidity, and follow-up data.

Methods: All cases with incidental GISTs found were reviewed.

Results: Two thousand six hundred three patients underwent obesity surgery founding a gastric GIST in eight patients (incidence 0.31 %). Mean tumor size was 7.65 mm (range 2.5-13 mm) with the majority of the lesions located in the fundus of the stomach. All lesions had negative resection margins. At a mean follow-up of 30 months, all patients were disease-free.

Conclusion: The long-term disease-free survival of 100 % in our study establishes laparoscopic wedge resection during RYGB and LSG as safe and effective in treating incidental gastric GISTs <2 cm.

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