Withdrawing method of the stiffening tube incidentally inserted into the descending colon

Figure 1 Schema shows our method briefly. A: The sliding tube was fully inserted into the descending colon incidentally; B: we reinserted the colonoscope through the migrating tube and made a slight angle; C: finally, we could remove the tube along with the scope by holding the angle of the scope.

Figure 2 Abdominal X-ray shows that the oral edge of the stiffening tube reaches near the splenic flexure. We reinserted the endoscope through the tube.

Figure 3 We made a slight angle of the scope over the oral end of the stiffening tube and removed the scope gently.