title: Bilateral multifocal inverted papilloma with osseous metaplasia of the sinonasal cavity.
authors.affiliation: Istanbul Medeniyet University Medical Faculty, Goztepe Training and Research Hospital, Department of Otorhinolaryngology, Istanbul, Turkey.
authors.forename: Lokman
authors.initials: L
authors.lastname: Uzun
authors.affiliation: Istanbul Medeniyet University Medical Faculty, Goztepe Training and Research Hospital, Department of Pathology, Istanbul, Turkey.
authors.forename: Seyma
authors.initials: S
authors.lastname: Ozkanli
authors.affiliation: Istanbul Medeniyet University Medical Faculty, Goztepe Training and Research Hospital, Department of Otorhinolaryngology, Istanbul, Turkey. Electronic address: mtkalcioglu@hotmail.com.
authors.forename: M Tayyar
authors.initials: MT
authors.lastname: Kalcioglu
authors.affiliation: Istanbul Medeniyet University Medical Faculty, Goztepe Training and Research Hospital, Department of Otorhinolaryngology, Istanbul, Turkey.
authors.forename: Numan
authors.initials: N
authors.lastname: Kokten
authors.affiliation: Istanbul Medeniyet University Medical Faculty, Goztepe Training and Research Hospital, Department of Otorhinolaryngology, Istanbul, Turkey.
authors.forename: Cigdem
authors.initials: C
authors.lastname: Kafkasli
mesh_terms: D006801:Humans; D008679:Metaplasia / Q000473:pathology*; D015508:Nasal Obstruction / Q000209:etiology*; D009669:Nose Neoplasms / Q000473:pathology*; D018308:Papilloma, Inverted / Q000000981:diagnostic imaging / Q000473:pathology*; D010255:Paranasal Sinus Neoplasms / Q000473:pathology*; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed