Case Report
Copyright ©The Author(s) 2019. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jan 6, 2019; 7(1): 116-121
Published online Jan 6, 2019. doi: 10.12998/wjcc.v7.i1.116
Follicular dendritic cell sarcoma detected in hepatogastric ligament: A case report and review of the literature
Wen-Xin Yan, You-Xi Yu, Ping Zhang, Xing-Kai Liu, Yan Li
Wen-Xin Yan, You-Xi Yu, Ping Zhang, Xing-Kai Liu, Department of Hepatobiliary and Pancreatic Surgery, the First Hospital of Jilin University, Changchun 130021, Jilin Province, China
Yan Li, Department of Surgery, School of Medicine, University of Louisville, Louisville, KY 40202, United States
Author contributions: Yan WX and Yu YX contributed to data collection and analysis, and manuscript drafting; Zhang P contributed to clinical consultant and case interpretation; Liu XK contributed to manuscript design and editing; Li Y contributed to English modification and coordinated with a native English speaker to check English grammar.
Informed consent statement: Informed consent was obtained from patients regarding the use of specimens for case report.
Conflict-of-interest statement: All authors declare to have no conflict of interest.
CARE Checklist (2016) statement: The guidelines of the CARE Checklist (2016) have been adopted.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (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: Xing-Kai Liu, MD, PhD, Department of Hepatobiliary and Pancreatic Surgery, the First Hospital of Jilin University, No. 71 Xinmin Street, Changchun 130021, Jilin Province, China.
Telephone: +86-431-88782222 Fax: +86-431-88782222
Received: August 14, 2018
Peer-review started: August 14, 2018
First decision: October 8, 2018
Revised: October 16, 2018
Accepted: October 22, 2018
Article in press: October 22, 2018
Published online: January 6, 2019
Processing time: 143 Days and 15.4 Hours

The most common organ where follicular dendritic cell sarcoma (FDCS) occurs is in cervical lymph nodes, while few cases are found in extranodal organs such as liver, spleen, and soft tissue. This is a case report that FDCS occurs in the hepatogastric ligament. To our knowledge, there is no such case that has been reported previously. A 47-year-old male patient was found to have an intraabdominal mass during an annual physical examination. Computed tomography showed a 4.2 cm × 4.1 cm mass located at the lesser curvature of the stomach, above the pancreas. During operation, a tumor mass was found in the hepatogastric ligament and a radical resection was performed. The tumor was diagnosed as FDCS by pathology and immunohistochemical testing. The patient had a favorable recovery, and no obvious abnormality was found 3 months post-operation.

Keywords: Follicular dendritic cell sarcoma, Hepatogastric ligament, Pathology, Immunohistochemistry, Computed tomography, Case report

Core tip: Follicular dendritic cell sarcoma (FDCS) is a rare malignant tumor that is derived from hyperplasia dendritic cells. There have been no cases reported of FDCS located in the hepatogastric ligament. This is a very rare localization for FDCS and necessitates attention from clinicians regarding the possibility of an abdominal mass in FDCS patients.