fig1

Figure 1. Potential internal herniation sites following Roux-en-Y gastric bypass based on antecolic or retrocolic approach, indicated by arrows 1-3. (1) Petersen’s space (mesenteric defect between Roux limb mesentery and transverse mesocolon), (2) Brolin’s space or mesojejunal window (mesenteric defect at the jejunojejunostomy), and (3) mesocolic window (defect in the transverse mesocolon). (Image from Kim Y, Crookes PF. Complications of bariatric surgery. In: Essentials and Controversies in Bariatric Surgery. Huang, C-K, ed. Available from: https://www.intechopen.com/chapters/47344. © 2014 Kim Y, Crookes PF. Published under CC BY 3.0 license. Available from: http://dx.doi.org/10.5772/58920.