case_images: PMC9876012_01
case_images: The esophageal septum/stenosis.
case_images: ac9-10-e00947-g001.jpg
case_images: PMC9876012_01_ac9-10-e00947-g001.jpg
case_images: F1
case_images: There was no pinhole, and the scope could not pass (Figure 1).
case_images: Transillumination seen by the ultraslim scope from below.
case_images: ac9-10-e00947-g002.jpg
case_images: PMC9876012_01_ac9-10-e00947-g002.jpg
case_images: F2
case_images: The transillumination from the adult EGD was seen by the ultraslim scope on the opposite side (Figure 2).
case_images: Needle knife septotomy.
case_images: ac9-10-e00947-g003.jpg
case_images: PMC9876012_01_ac9-10-e00947-g003.jpg
case_images: F3
case_images: Free needle septotomy was performed under the guidance of both the transillumination and under direct visualization (Figure 3).
case_images: Savary guidewire advancement through the septotomy under the direct vision of the adult scope.
case_images: ac9-10-e00947-g004.jpg
case_images: PMC9876012_01_ac9-10-e00947-g004.jpg
case_images: F4
case_images: A Savary wire was advanced under the direct vision of the adult gastroscope through the septotomy, and the adult gastroscope was removed (Figure 4).
case_images: Esophageal dilation using the savary dilator.
case_images: ac9-10-e00947-g005.jpg
case_images: PMC9876012_01_ac9-10-e00947-g005.jpg
case_images: F5
case_images: Dilation was performed with a Savary dilator with no resistance at 5, 7, and 9 mm under fluoroscopy and endoscopy guidance with the ultraslim scope situated in the distal esophagus (Figure 5).
case_images: Repeat EGD showing a patent esophagus.
case_images: ac9-10-e00947-g006.jpg
case_images: PMC9876012_01_ac9-10-e00947-g006.jpg
case_images: F6
case_images: EGD was repeated 2 weeks later and showed partial stricture with normal mucosa, which was traversed with the ultraslim gastroscope, and a repeat dilation using a through-the-scope 9 mm balloon was performed (Figure 6).