Reoperative Resection of Killian-Jamieson Diverticulum Using Indigo Carmine-Assisted Endoscopic Localization: A Case Report.

Killian-Jamieson diverticulum is a rare cervical esophageal diverticulum that is often difficult to identify intraoperatively because of its small size and lateral location. To our knowledge, there have been no case reports requiring reoperation because a small diverticulum was difficult to identify intraoperatively. We report a case of a 44-year-old man with progressive dysphagia whose initial transcervical diverticulectomy was incomplete because the diverticular orifice could not be clearly identified. At reoperation, intraoperative endoscopic indigo carmine injection enabled precise localization and complete, safe resection. This case highlights that indigo carmine injection may serve as a simple and effective adjunct to facilitate accurate identification and successful resection of small or obscure esophageal diverticula.