Treatment of benign rectal stricture caused by repeated anal insertion by endoscopy and balloon dilation: A case report

Figure 1 Colonoscopy shows an apparently benign, circumferential rectal narrowing 6 cm above the anal verge.

Figure 2 First endoscopic stricturotomy using argon plasma coagulation. A: Tissue ablation at stricture edge using argon plasma coagulation; B: The diameter of the stricture increased.

Figure 3 Ballon dilation using Foley catheter. A: Stricture site dilation to 25 mm with Foley balloon (15 mL water); B and C: A 25 mm anal dilator passes through smoothly.

Figure 4 Second endoscopic stricturotomy with argon plasma coagulation. Complete resolution of the rectal stricture.

Figure 5 Follow-up colonoscopy after endoscopic treatment. The luminal narrowing resolved completely without evidence of recurrent rectal stricture four months after the endoscopic treatment.