Bleeding from the upper gastrointestinal tract after Mason's vertical banded gastroplasty.

Background: Gastric bleeding is a rare complication after a vertical banded gastroplasty (VBG). Only a few cases of gastric bleeding after a VBG have been reported, and there is discussion about its etiology. We present two cases of gastric bleeding after a VBG, and discuss the etiology, diagnostic approach and management.