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Incidental Finding of GIST During Obesity Surgery

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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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Fig. 1

Abbreviations

BMI:

Body mass index

LSG:

Laparoscopic sleeve gastrectomy

RYGB:

Roux-en-Y gastric bypass

GIST:

Gastrointestinal stromal tumor

SEER:

Surveillance, Epidemiology, and End Results

NCCN:

National Comprehensive Cancer Network

ESMO:

European Society for Medical Oncology

BII-bypass:

Billroth II-bypass (Omega loop gastric bypass)

CT:

Computed tomography

HPF:

High-power fields

SD:

Standard deviation

HP:

Helicobacter pylori

MRI:

Magnetic resonance imaging

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Disclosure

Drs. S. Chiappetta, S. Theodoridou, C. Stier, and R.A. Weiner have no conflicts of interest or financial ties to disclose.

Statement of Informed Consent

Informed consent was obtained from all individual participants included in the study.

Statement of Human and Animal Rights

For this type of study, formal consent was not required.

Author information

Authors and Affiliations

  1. Department of Bariatric and Metabolic Surgery, Sana Klinikum Offenbach, Starkenburgring 66, 63069, Offenbach am Main, Germany

    Sonja Chiappetta, Sophia Theodoridou, Christine Stier & Rudolf A. Weiner

Authors
  1. Sonja Chiappetta
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  2. Sophia Theodoridou
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  3. Christine Stier
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  4. Rudolf A. Weiner
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Corresponding author

Correspondence to Sonja Chiappetta.

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Chiappetta, S., Theodoridou, S., Stier, C. et al. Incidental Finding of GIST During Obesity Surgery. OBES SURG 25, 579–583 (2015). https://doi.org/10.1007/s11695-015-1571-4

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  • DOI: https://doi.org/10.1007/s11695-015-1571-4

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