Case Report
Copyright ©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Surg. May 27, 2023; 15(5): 978-983
Published online May 27, 2023. doi: 10.4240/wjgs.v15.i5.978
Giant teratoma with isolated intestinal duplication in adult: A case report and review of literature
Ping-Fu Xiong, Li Yang, Zhi-Qiang Mou, Yu Jiang, Jing Li, Ming-Xin Ye
Ping-Fu Xiong, Li Yang, Zhi-Qiang Mou, Yu Jiang, Jing Li, Ming-Xin Ye, Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
Author contributions: Ye MX and Li J proposed the idea and supervised, revised the writing; Xiong PF collected the data, analyzed the literature, and wrote the manuscript; Yang L assisted with data collection and imaging guidance; Ye MX, Jiang Y, Mou ZQ were the patient’s surgeons and participated in the entire operation; and all authors read and approved the manuscript.
Informed consent statement: Informed written consent was obtained from the patient for publication of this report and any accompanying images.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
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:
Corresponding author: Ming-Xin Ye, PhD, Assistant Professor, Doctor, Surgeon, Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Taiping Street, Luzhou 646000, Sichuan Province, China.
Received: December 10, 2022
Peer-review started: December 10, 2022
First decision: January 3, 2023
Revised: January 9, 2023
Accepted: April 7, 2023
Article in press: April 7, 2023
Published online: May 27, 2023

A combination of diseases is a rare phenomenon. Their clinical manifestations can vary, and the diagnosis can be challenging. Intestinal duplication is a rare congenital malformation, whereas retroperitoneal teratoma is a tumor in the retroperitoneal space, derived from the remaining embryonic tissue. There are relatively few clinical findings on adult retroperitoneal benign tumors. It is hard to believe that these two rare diseases can happen to the same person.


A 19-year-old woman complaining of abdominal pain with nausea and vomiting was admitted. Abdominal computed tomography angiography was suggested for invasive teratoma. Intraoperative exploration revealed that the giant teratoma was connected to an isolated intestinal tract in the retroperitoneum. The postoperative pathological examination revealed that mature giant teratoma was present with intestinal duplication. This was a rare intraoperative finding that was successfully treated surgically.


The clinical manifestations of intestinal duplication malformation are various, and difficult to diagnose before the operation. The possibility of intestinal replication should be considered when intraperitoneal cystic lesions are present.

Keywords: Teratoma, Intestinal duplication, Chimera, Case report

Core Tip: Giant teratoma with intestinal duplication has not been reported yet. Here, we report a case of a 19-year-old woman with giant teratoma and isolated intestinal duplication who complained of abdominal pain with nausea and vomiting; a rare intraoperative finding successfully by surgery.