title: Primary sinonasal ameloblastoma.
abstract: A case of primary ameloblastoma of the right sinonasal tract in a 66-year-old man is reported. The tumour presented as a radiographically solid mass filling the right nasal cavity and sinuses and without continuity with maxillary alveola. After radical surgery plus postoperative radiotherapy, the patient has pursued a non-aggressive clinical course after nine months of follow-up. The paper reviews the clinico-pathological features of this rare tumour and supports the theory of its sinonasal epithelium origin.
authors.affiliation: Department of Anatomic Pathology, Hospital de Basurto, Basque Country University (UPV/EHU), Bilbao, Spain. cereno@hbas.osakidetza.net
authors.forename: Cosme
authors.initials: C
authors.lastname: Ereño
authors.forename: Leire
authors.initials: L
authors.lastname: Etxegarai
authors.forename: María
authors.initials: M
authors.lastname: Corral
authors.forename: José M
authors.initials: JM
authors.lastname: Basurko
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Bilbao
authors.forename: José I
authors.initials: JI
authors.lastname: López
mesh_terms: D000368:Aged; D000564:Ameloblastoma / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D009669:Nose Neoplasms / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D013517:Otorhinolaryngologic Surgical Procedures; D010255:Paranasal Sinus Neoplasms / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed