title: Follicular dendritic cell sarcoma of the tonsil: report of a rare case.
abstract: Follicular dendritic cell tumors are extremely rare. Only 17 cases have been previously described in the literature, and only three of them involved primary tumours of the oral cavity. We describe a new case of the latter, which occurred in a 51-year-old man who sought evaluation for a painless enlargement of his left palatine tonsil. The tonsil was excised, and histologic examination revealed that the tumor was a primary sarcoma that had arisen from the dendritic reticulum cells of the palatine tonsil. Postoperatively, the tumor site was treated with percutaneous irradiation (total dose: 70 Gy). After more than 5 years of follow-up, the patient showed no evidence of recurrence. We also discuss the salient features of the immunohistochemical examination.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Department of Pathology, Federal Armed Hospital, Ulm, Germany. matthias.tisch@extern.uni-ulm.de
authors.forename: Matthias
authors.initials: M
authors.lastname: Tisch
authors.forename: Frank
authors.initials: F
authors.lastname: Hengstermann
authors.forename: Klaus
authors.initials: K
authors.lastname: Kraft
authors.forename: Gerd
authors.initials: G
authors.lastname: von Hinüber
authors.forename: Heinz
authors.initials: H
authors.lastname: Maier
mesh_terms: D001707:Biopsy, Needle; D020566:Dendritic Cells, Follicular / Q000473:pathology*; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D018714:Radiotherapy, Adjuvant; D035583:Rare Diseases; D012509:Sarcoma / Q000473:pathology* / Q000532:radiotherapy / Q000601:surgery; D014067:Tonsillar Neoplasms / Q000473:pathology* / Q000532:radiotherapy / Q000601:surgery; D014068:Tonsillectomy / Q000379:methods; D016896:Treatment Outcome