Endoscopic treatment of Killian-Jamieson diverticulum using submucosal tunneling diverticulotomy technique

摘要

Killian-Jamieson diverticulum (KJD) is a rare type of esophageal diverticulum, with recent comprehensive liter- ature review reporting few cases. It is less commonly encountered in clinical practice compared with Zenker’s diverticulum. KJD is an anterolateral diverticulum that orig- inates in an area of anatomic weakness known as the Killian-Jamieson triangle. It is located inferior to the crico- pharyngeus muscle, superior to circular muscle, and lateral to the longitudinal muscle of the cervical esophagus (Fig. 1). The recurrent laryngeal nerve enters this location as it travels to the larynx. Zenker’s diverticulum, in contrast, is located posteriorly superior to the cricopharyngeus muscle.