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CC BY 4.0 · Endoscopy 2025; 57(S 01): E833-E834
DOI: 10.1055/a-2647-4577
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Simultaneous submucosal tunneling endoscopic septum division and submucosal tunneling endoscopic resection for epiphrenic diverticulum combined with an esophageal submucosal tumor

Shao-Bin Luo‡
1   Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital Fudan University, Shanghai, China (Ringgold ID: RIN92323)
2   Shanghai Collaborative Innovation Center of Endoscopy, Shanghai, China
,
Zu-Qiang Liu‡
1   Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital Fudan University, Shanghai, China (Ringgold ID: RIN92323)
2   Shanghai Collaborative Innovation Center of Endoscopy, Shanghai, China
,
Li Wang
1   Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital Fudan University, Shanghai, China (Ringgold ID: RIN92323)
2   Shanghai Collaborative Innovation Center of Endoscopy, Shanghai, China
3   Endoscopy Center, Shanghai Geriatric Medical Center, Shanghai, China (Ringgold ID: RIN729313)
,
Quan-Lin Li
2   Shanghai Collaborative Innovation Center of Endoscopy, Shanghai, China
4   Zhongshan Hospital Fudan University, Shanghai, China (Ringgold ID: RIN92323)
,
Ping-Hong Zhou
1   Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital Fudan University, Shanghai, China (Ringgold ID: RIN92323)
2   Shanghai Collaborative Innovation Center of Endoscopy, Shanghai, China
› Author Affiliations

Supported by: The National Natural Science Foundation of China 82170555, 82000507, 82370546, 82270569
› Further Information
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A 43-year-old woman was admitted with a history of dysphagia for 2 years. Endoscopy showed an esophageal submucosal tumor and an epiphrenic diverticulum located above the esophagogastric junction (EGJ) ([Fig. 1]). Submucosal tunneling endoscopic septum division (STESD) combined with submucosal tunneling endoscopic resection (STER) with was performed ([Video 1]).

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Fig. 1 Endoscopic images showing: a an epiphrenic diverticulum; b a submucosal tumor in the cardia.
Simultaneous STESD and STER in one tunnel for an epiphrenic diverticulum combined with an esophageal submucosal tumor.Video 1

After the submucosal tunnel had been established, the annular muscle bundle and diverticular ridge were completely transected, and the whole layer of the esophageal muscle bundle was completely severed 2 cm above and below the EGJ ([Fig. 2]). In addition, the esophageal muscularis propria above the cardia showed obvious thickening in the tunnel. A 4.0-cm submucosal tumor with unclear boundaries was found, and full-thickness resection was performed ([Fig. 3]). The postoperative pathological diagnosis was leiomyoma. The patient was discharged on postoperative day 3 without complications. Follow-up endoscopy 1 year after the procedure confirmed the base of diverticulum was flattened ([Fig. 4]), and the patient’s symptoms of dysphagia had disappeared.

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Fig. 2 Endoscopic images showing: a the creation of a submucosal tunnel; b, c complete transection of the muscle of the diverticulum septum.
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Fig. 3 Endoscopic images showing: a a submucosal tumor with unclear boundaries b full-thickness resection being performed; c closure of the tunnel entrance with metal clips. d The resected specimen, which was 4 × 2 cm in size.
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Fig. 4 Endoscopic image at follow-up 1 year later showing the flattened base of diverticulum.

This case is the first report of simultaneous STESD and STER in one tunnel for an epiphrenic diverticulum with an esophageal submucosal tumor. Incision of the diverticular ridge and the spastic muscle layer within the same tunnel aimed avoid mucosal injury and esophageal perforation, which can greatly increase the difficulty of such procedures. The traditional treatment for an epiphrenic diverticulum with an esophageal submucosal tumor would be laparoscopic epiphrenic diverticulectomy, myotomy, and fundoplication, which is associated with high postoperative morbidity [1]. The advantage of STER is preservation of the overlying mucosal flap, which ensures the relative integrity of the esophageal wall, thereby reducing the risk of infection and pneumomediastinum.

This case suggests that the application of simultaneous STESD and STER in one tunnel may be a safe and effective technique for an epiphrenic diverticulum combined with an esophageal submucosal tumor.

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Conflict of Interest

The authors declare that they have no conflict of interest.

  • Reference

  • 1 Melman L, Quinlan J, Robertson B. et al. Esophageal manometric characteristics and outcomes for laparoscopic esophageal diverticulectomy, myotomy, and partial fundoplication for epiphrenic diverticula. Surg Endosc 2009; 23: 1337-1341
    CrossrefPubMedSearch in Google Scholar

Correspondence

Ping-Hong Zhou, MD
Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University
180 Fenglin Road
Shanghai
China   

Publication History

Article published online:
29 July 2025

© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).

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  • Reference

  • 1 Melman L, Quinlan J, Robertson B. et al. Esophageal manometric characteristics and outcomes for laparoscopic esophageal diverticulectomy, myotomy, and partial fundoplication for epiphrenic diverticula. Surg Endosc 2009; 23: 1337-1341
    CrossrefPubMedSearch in Google Scholar

  Permissions and Reprints
Zoom
Fig. 1 Endoscopic images showing: a an epiphrenic diverticulum; b a submucosal tumor in the cardia.
Zoom
Fig. 2 Endoscopic images showing: a the creation of a submucosal tunnel; b, c complete transection of the muscle of the diverticulum septum.
Zoom
Fig. 3 Endoscopic images showing: a a submucosal tumor with unclear boundaries b full-thickness resection being performed; c closure of the tunnel entrance with metal clips. d The resected specimen, which was 4 × 2 cm in size.
Zoom
Fig. 4 Endoscopic image at follow-up 1 year later showing the flattened base of diverticulum.