Gastro-Intestinal Tract Cancers Following Bariatric Surgery: a Narrative Review

  • Reza Ebrahimi
  • Mohammad KermansaraviEmail author
  • Alireza Khalaj
  • Foolad Eghbali
  • Ali Mousavi
  • Abdolreza Pazouki
Review Article


The association between obesity and malignancies has been identified epidemiologically. Meanwhile, the increasing global number of bariatric surgeries is reported annually; bariatric surgery’s effect on different types of cancers is not well understood. Unfortunately, nonspecific presentations and difficulties regarding investigations make diagnosis challenging. The aim of this study is to compile available data about gastro-intestinal (GI) cancers, occurring after different bariatric surgeries. Although GI cancers are considered a rare complication of obesity surgery, they do exist, and diagnosis needs a high index of suspicion.


Bariatric surgery Gastric neoplasms Esophageal neoplasms Colorectal cancer Gastric bypass Sleeve gastrectomy 


Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interest.

Supplementary material

11695_2019_4007_MOESM1_ESM.docx (16 kb)
Supplementary Table 1 Reported cases of GI cancers following Jejunoileal bypass (JIB) (DOCX 15 kb)
11695_2019_4007_MOESM2_ESM.docx (17 kb)
Supplementary Table 2 Reported cases of GI cancers following vertical banded gastroplasty (VBG) and horizontal gastroplasty (DOCX 17 kb)


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Minimally Invasive Surgery Research CenterIran University of Medical SciencesTehranIran
  2. 2.Center of Excellence of International Federation for Surgery of ObesityHazrat e Rasool HospitalTehranIran
  3. 3.Tehran Obesity Treatment Center, Department of Surgery, Faculty of MedicineShahed UniversityTehranIran

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