Case Report
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Nov 6, 2022; 10(31): 11567-11573
Published online Nov 6, 2022. doi: 10.12998/wjcc.v10.i31.11567
Mass-like extragonadal endometriosis associated malignant transformation in the pelvis: A rare case report
Ping Chen, Ya Deng, Qiao-Qiao Wang, Hong-Wei Xu
Ping Chen, Ya Deng, Qiao-Qiao Wang, Hong-Wei Xu, Department of Obstetrics and Gynecology, Shaoxing Second Hospital, Shaoxing 312000, Zhejiang Province, China
Author contributions: Deng Y and Wang QQ contributed to conceptualization; Wang QQ contributed to data curation; Chen P contributed to supervision; Deng Y and Xu HW contributed to original draft writing; Chen P contributed to manuscript review and editing; all authors have read and approved the final manuscript.
Informed consent statement: Informed written consent was obtained from the patient for publication of this case report and the 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: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Ping Chen, MD, Professor, Department of Obstetrics and Gynecology, Shaoxing Second Hospital, No. 123 Yanan Road, Shaoxing 312000, Zhejiang Province, China. 592058001@qq.com
Received: June 10, 2022
Peer-review started: June 10, 2022
First decision: June 27, 2022
Revised: July 1, 2022
Accepted: September 23, 2022
Article in press: September 23, 2022
Published online: November 6, 2022
Core Tip

Core Tip: Endometriosis associated malignant transformation is rare and difficult to diagnose in clinical settings. In this study, we report of a rare case of a female patient with a 5 cm irregular mass in the left iliac fossa and without any endometriotic lesions in the pelvic cavity. Histopathological examination revealed main undifferentiated adenocarcinoma with a few typical endometrial epithelial and stromal tissues in the adjacent area. The patient underwent hysterectomy, bilateral salpingectomy and bilateral ovariectomy followed by subsequent radiotherapy and chemotherapy. She recovered well post-operation with no evidence of recurrence after 10 mo. A review of the literature concerning endometriosis associated malignant transformation is also presented.