Endoscopic diverticulotomy with an isolated-tip needle-knife papillotome (Iso-Tome) and a fitted overtube for the treatment of a Killian-Jamieson diverticulum

Figure 1 Barium swallow and endoscopic images. A: An antero-posterior view of a barium swallow image, showing a diverticular sac filled with contrast and food debris in the left lateral side of the cervical esophagus; B: An endoscopic view of the KJD that originates on the anterolateral wall of the cervical esophagus, which was filled with impacted food debris (black arrow: the tissue bridge; white arrow: The esophageal lumen).