title: Computer Tomography Imaging Findings of Abdominal Follicular Dendritic Cell Sarcoma: A Report of 5 Cases.
abstract: Follicular dendritic cell sarcoma (FDCS) is a neoplasm that arises from follicular dendritic cells. FDCSs originating in the abdomen are extremely rare. Clinically, they often mimic a wide variety of other abdominal tumors, and correct preoperative diagnosis is often a challenging task. To date, only scattered cases of abdominal FDCS have been reported and few data are available on their radiological features. Here we present the computer tomography imaging findings of 5 patients with surgically and pathologically demonstrated abdominal FDCS. An abdominal FDCS should be included in the differential diagnosis when single or multiple masses with relatively large size, well- or ill-defined borders, complex internal architecture with marked internal necrosis and/or focal calcification, and heterogeneous enhancement with "rapid wash-in and slow wash-out" or "progressive enhancement" enhancement patterns in the solid component are seen.
authors.affiliation: From the Department of Medical Imaging (JL, Z-JG, C-MX, P-QC, X-FL), Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center; Department of Pathology (X-KZ), Sun Yat-sen University Cancer Center; and Department of Medical Imaging Center (R-YC), NanFang Hospital, Southern Medical University, Guangzhou, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.forename: Zhi-Jun
authors.initials: ZJ
authors.lastname: Geng
authors.forename: Chuan-Miao
authors.initials: CM
authors.lastname: Xie
authors.forename: Xin-Ke
authors.initials: XK
authors.lastname: Zhang
authors.forename: Rui-Ying
authors.initials: RY
authors.lastname: Chen
authors.forename: Pei-Qiang
authors.initials: PQ
authors.lastname: Cai
authors.forename: Xiao-Fei
authors.initials: XF
authors.lastname: Lv
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging* / Q000473:pathology; D000368:Aged; D054740:Dendritic Cell Sarcoma, Follicular / Q000175:diagnosis* / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed