Published online Jan 6, 2019. doi: 10.12998/wjcc.v7.i1.116
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.
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.