Case Report
Copyright ©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jun 6, 2021; 9(16): 3936-3942
Published online Jun 6, 2021. doi: 10.12998/wjcc.v9.i16.3936
Endoscopic diagnosis and treatment of an appendiceal mucocele: A case report
Ting-Ting Wang, Jia-Jun He, Ping-Hong Zhou, Wei-Wei Chen, Chao-Wu Chen, Jun Liu
Ting-Ting Wang, Jia-Jun He, Department of Gastroenterology, The First Clinical Medical College, Dalian Medical University, Dalian 116044, Liaoning Province, China
Ping-Hong Zhou, Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
Wei-Wei Chen, Chao-Wu Chen, Jun Liu, Endoscopy Center, Department of Gastroenterology, Clinical Medical College, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
Author contributions: Wang TT reviewed the literature and contributed to manuscript drafting; He JJ modified the manuscript; Zhou PH performed the endoscopic procedure; Chen WW and Chen CW contributed to manuscript drafting; Liu J was responsible for the revision of the manuscript for important intellectual content; all authors issued final approval for the version to be submitted.
Informed consent statement: Written informed consent was obtained from the patient for publication of this case report.
Conflict-of-interest statement: The authors declare that they have no conflicts of interest regarding this work.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Jun Liu, MD, Chief Physician, Endoscopy Center, Department of Gastroenterology, Clinical Medical College, Yangzhou University, No. 88 South University Ave, Yangzhou 225009, Jiangsu Province, China. sbyy_liujun@163.com
Received: November 16, 2020
Peer-review started: November 16, 2020
First decision: December 13, 2020
Revised: December 26, 2020
Accepted: March 18, 2021
Article in press: March 18, 2021
Published online: June 6, 2021
Abstract
BACKGROUND

Appendiceal mucocele is a rare disease that causes obstructive dilatation of the appendix due to the intraluminal accumulation of mucin. We report a case of endoscopic diagnosis and treatment of an appendiceal mucocele.

CASE SUMMARY

A 47-year-old man presented with a protrusion around the orifice of the appendix discovered by colonoscopy incidentally. He was admitted to our hospital for a routine checkup without any symptoms. Abdominal computed tomography showed a cystic mass approximately 3 cm in diameter with fat stranding. The preoperative diagnosis was non-neoplastic appendiceal mucocele, and endoscopic treatment was performed. The endoscopic findings and pathological results supported our preoperative diagnosis. The endoscopic treatment of appendiceal mucocele was feasible and effective, which was confirmed by repeated endoscopy and post-operative computed tomography after 7 mo.

CONCLUSION

Endoscopic therapy provides a new method for the treatment of appendiceal mucocele.

Keywords: Appendiceal mucocele, Endoscopy, Colonoscopy, Diagnosis, Treatment, Case report

Core Tip: Appendiceal mucocele is rare and was formerly treated by surgical resection. However, iatrogenic rupture of the mucocele may lead to peritoneal dissemination in malignant cases. Colonoscopy is not only significant for diagnosis but also helps treat appendiceal mucocele. Here, we report a case of appendiceal mucocele that was successfully diagnosed and treated by endoscopy.