title: Incidental finding of GIST during obesity surgery.
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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of Bariatric and Metabolic Surgery, Sana Klinikum Offenbach, Starkenburgring 66, 63069, Offenbach am Main, Germany, sonja1002@gmx.de.
authors.forename: Sonja
authors.initials: S
authors.lastname: Chiappetta
authors.forename: Sophia
authors.initials: S
authors.lastname: Theodoridou
authors.forename: Christine
authors.initials: C
authors.lastname: Stier
authors.forename: Rudolf A
authors.initials: RA
authors.lastname: Weiner
mesh_terms: D000328:Adult; D000368:Aged; D050110:Bariatric Surgery / Q000379:methods*; D005260:Female; D005743:Gastrectomy / Q000379:methods; D015390:Gastric Bypass; D005748:Gastric Fundus; D046152:Gastrointestinal Stromal Tumors / Q000175:diagnosis* / Q000453:epidemiology / Q000601:surgery; D005858:Germany / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D033162:Incidental Findings; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000453:epidemiology / Q000601:surgery*; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000601:surgery; D016896:Treatment Outcome