Case Report
Copyright ©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Surg. Mar 27, 2024; 16(3): 944-954
Published online Mar 27, 2024. doi: 10.4240/wjgs.v16.i3.944
Mucinous neoplasm of the appendix: A case report and review of literature
Hao-Cheng Chang, Jung-Cheng Kang, Ta-Wei Pu, Ruei-Yu Su, Chao-Yang Chen, Je-Ming Hu
Hao-Cheng Chang, Department of Surgery, Tri-Service General Hospital, Taipei 114, Taiwan
Jung-Cheng Kang, Division of Colon and Rectal Surgery, Department of Surgery, Taiwan Adventist Hospital, Taipei 105, Taiwan
Ta-Wei Pu, Division of Colon and Rectal Surgery, Department of Surgery, Tri-Service General Hospital Songshan Branch, National Defense Medical Center, Taipei 105, Taiwan
Ta-Wei Pu, Chao-Yang Chen, Je-Ming Hu, Division of Colon and Rectal Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
Ruei-Yu Su, Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei 105, Taiwan
Ruei-Yu Su, Department of Pathology and Laboratory Medicine, Taoyuan Armed Forces General Hospital, Taoyuan 325, Taiwan
Author contributions: Chang HC, Kang JC, Pu TW, Chen CY and Hu JM designed and performed the research; Chang HC, Kang JC, and Pu TW performed surgery; Chang HC wrote the manuscript; Su RY analyzed the histopathology specimens.
Informed consent statement: Informed written consent was obtained from the patient for publication of this report and any accompanying images.
Conflict-of-interest statement: The authors declare that they have no conflicts of interest to disclose.
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: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Ta-Wei Pu, MD, Lecturer, Division of Colon and Rectal Surgery, Department of Surgery, Songshan Branch, Tri-Service General Hospital, National Defense Medical Center, No. 131 Jiankang Road, Taipei 105, Taiwan. tawei0131@gmail.com
Received: November 29, 2023
Peer-review started: November 29, 2023
First decision: December 6, 2023
Revised: December 17, 2023
Accepted: February 22, 2024
Article in press: February 22, 2024
Published online: March 27, 2024
Processing time: 113 Days and 20 Hours
Core Tip

Core Tip: Here we present a case of an appendiceal mucinous neoplasm (AMN) incidentally identified during a laparoscopic hemicolectomy performed to treat adenocarcinoma in the transverse colon of a 74-year-old male. This presentation underscores the diagnostic complexity posed by AMNs, which often manifest nonspecifically and may be mistaken for other malignancies. This case highlights the critical role of immunohistochemical analysis in establishing a definitive diagnosis and informing surgical strategy, with a particular focus on averting misdiagnosis and potential complications, such as pseudomyxoma peritonei.