title: Oncocytoma presenting as a choanal polyp: a case report.
abstract: Oncocytomas account for less than 1% of all salivary gland neoplasms. Histochemical methods and electron microscopy showing the large amount of characteristic mitochondria have made the definition of the tumor more precise. A solid oncocytoma originating in the nose and presenting as a choanal polyp is described. Pre- and postoperative CT scans are shown as light and electron microscopy photomicrographs. The tumor had no invasive or other malignant characteristics and was therefore classified as a benign oncocytoma.
authors.affiliation: Department of Otolaryngology/Head & Neck Surgery, Haukeland University Hospital, Bergen, Norway.
authors.forename: O G
authors.initials: OG
authors.lastname: Klausen
authors.forename: S
authors.initials: S
authors.lastname: Steinsvåg
authors.forename: J
authors.initials: J
authors.lastname: Olofsson
mesh_terms: D000236:Adenoma / Q000000981:diagnostic imaging / Q000473:pathology*; D000368:Aged; D001706:Biopsy; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009303:Nasopharyngeal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D011127:Polyps / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed