Figure 4From: A randomized controlled trial of endoscopic steroid injection for prophylaxis of esophageal stenoses after extensive endoscopic submucosal dissectionBarium esophagography 1 month after endoscopic submucosal dissection. The yellow lines indicate the narrow lumens owing to resection. a. Patient allocated to the control group, who developed a severe esophageal stricture that required 13 sessions of dilatation therapy. b. Patient allocated to the treatment group, who did not require dilatation.Back to article page