title: Follicular dendritic cell sarcoma of the abdomen: the imaging findings.
abstract: Follicular dendritic cell sarcoma is a rare neoplasm that originates from follicular dendritic cells in lymphoid follicles. This disease usually involves the lymph nodes, and especially the head and neck area. Rarely, extranodal sites may be affected, including tonsil, the oral cavity, liver, spleen and the gastrointestinal tract. We report here on the imaging findings of follicular dendritic cell sarcoma of the abdomen that involved the retroperitoneal lymph nodes and colon. It shows as a well-defined, enhancing homogenous mass with internal necrosis and regional lymphadenopathy.
authors.affiliation: Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Korea.
authors.forename: Tae Wook
authors.initials: TW
authors.lastname: Kang
authors.forename: Soon Jin
authors.initials: SJ
authors.lastname: Lee
authors.forename: Hye Jong
authors.initials: HJ
authors.lastname: Song
mesh_terms: D000005:Abdomen / Q000000981:diagnostic imaging; D000008:Abdominal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging*; D015746:Abdominal Pain / Q000209:etiology; D000368:Aged; D003106:Colon / Q000000981:diagnostic imaging; D003110:Colonic Neoplasms / Q000150:complications / Q000000981:diagnostic imaging*; D054740:Dendritic Cell Sarcoma, Follicular / Q000150:complications / Q000000981:diagnostic imaging*; D020566:Dendritic Cells, Follicular / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D004415:Dyspepsia / Q000209:etiology; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D008198:Lymph Nodes; D008297:Male; D008875:Middle Aged; D011860:Radiography, Abdominal / Q000379:methods; D012187:Retroperitoneal Space / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed / Q000379:methods; D014463:Ultrasonography