title: Follicular dendritic cell sarcoma of the tonsil: case report.
abstract: Follicular dendritic cell sarcomas are unusual, and extranodal origin is extremely rare. The English literature contains only eight cases in which this sarcoma has been presented as a tonsillar mass. We report a new case of follicular dendritic cell sarcoma of the tonsil in a 76 year old woman. The patient underwent diagnostic tonsillectomy for a left tonsillar mass, and follicular dendritic cell sarcoma was diagnosed based on histopathological and immunoperoxidase findings. Postoperative radiotherapy was performed. The patient is alive and disease-free at 4 years of follow-up. Without a high index of suspicion, this entity can easily be missed. We believe that follicular dendritic cell sarcoma should be included in the differential diagnosis for any tonsillar mass.
authors.affiliation: Faculty of Medicine, Department of Otorhinolaryngology & Head and Neck Surgery, Baskent University, 6. Cadde No: 72/2, 06490 Bahcelievler-Ankara, Turkey. erdinca@baskent-ank.edu.tr
authors.forename: Erdinc
authors.initials: E
authors.lastname: Aydin
authors.forename: Levent Naci
authors.initials: LN
authors.lastname: Ozluoglu
authors.forename: Beyhan
authors.initials: B
authors.lastname: Demirhan
authors.forename: Unser
authors.initials: U
authors.lastname: Arikan
mesh_terms: D000368:Aged; D020566:Dendritic Cells, Follicular / Q000473:pathology* / Q000528:radiation effects; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D012509:Sarcoma / Q000473:pathology* / Q000532:radiotherapy / Q000601:surgery; D014067:Tonsillar Neoplasms / Q000473:pathology* / Q000532:radiotherapy / Q000601:surgery; D014068:Tonsillectomy