Case Report
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Aug 21, 2022; 28(31): 4456-4462
Published online Aug 21, 2022. doi: 10.3748/wjg.v28.i31.4456
Low-grade myofibroblastic sarcoma of the liver misdiagnosed as cystadenoma: A case report
Jie Li, Xin-Yue Huang, Bo Zhang
Jie Li, Xin-Yue Huang, Bo Zhang, Department of Ultrasonic Imaging, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
Author contributions: Li J wrote and edited the original draft, reviewed the literature, contributed to data collection and analysis; Huang XY contributed to assist with the patient’s CEUS; Zhang B performed the patient’s US and CEUS, supervised the report, provided clinical advice, reviewed, and approved the final manuscript.
Informed consent statement: Informed written consent was obtained from the patients for the publication of this report and any accompanying images.
Conflict-of-interest statement: The authors declare that they have no conflict of interest.
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: Bo Zhang, MD, Associate Chief Physician, Deputy Director, Department of Ultrasonic Imaging, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha 410008, Hunan Province, China. zhangbo8095@csu.edu.cn
Received: May 16, 2022
Peer-review started: May 16, 2022
First decision: June 6, 2022
Revised: June 10, 2022
Accepted: July 25, 2022
Article in press: July 25, 2022
Published online: August 21, 2022
Abstract
BACKGROUND

Low-grade myofibroblastic sarcoma (LGMS) is a rare malignant tumor. It has no specific clinical manifestations and commonly occurs in the head and neck, extremities and other body parts, with the liver not as its predisposing site.

CASE SUMMARY

We report a case report of a 58-year-old man with right upper abdominal pain for 11 d. Contrast-enhanced computed tomography (CECT), CE magnetic resonance imaging and CE ultrasound (US) all showed a cystic-solid mass in the right liver. As the initial clinical diagnosis was hepatic cystadenoma, surgical resection was performed, and the postoperative pathology indicated hepatic LGMS. The 3-mo follow-up showed favorable recovery of the patient. However, at 7-mo follow-up, two-dimensional US and CECT showed a suspected metastatic lesion in the right-middle abdomen.

CONCLUSION

Hepatic MS is particularly rare and easily misdiagnosed, more cases will contribute to the understanding and the diagnosis accuracy.

Keywords: Myofibroblastic sarcoma, Liver, Cystic-solid mass, Imaging, Diagnosis, Case report

Core Tip: Myofibroblastic sarcoma (MS) is a rare malignant spindle-shaped cell tumor derived from mesenchymal tissue, and it is particularly rare in the liver. Pathological examination is the gold standard for the diagnosis of hepatic MS. There are different biological characteristics of different lesions and protocols for surgical treatment; therefore, we should pay attention to more information conducive to differential diagnosis in order to improve the preoperative diagnosis, and to choose an appropriate surgical approach.