title: Inverted papilloma (Schneiderian papilloma) with involvement of the oral cavity: report of an unusual case.
abstract: Inverted Schneiderian papilloma (ISP) is a neoplasm of epithelial lining origin which arises in the respiratory mucosa that lines the nasal cavity and paranasal sinuses. The inverted Schneiderian papilloma frequently appears as a unilateral lesion in the nasal septum and extends secondarily to the nasal and paranasal sinuses. This paper reports an unusual case of this pathology with involvement of the oral cavity in a 61-year-old white man. Clinical evaluation revealed a vegetating mass in the alveolar ridge of the right maxilla that had been present for approximately 4 months. After radiographic evaluation, involvement of the maxillary sinus was detected. Microscopic evaluation, in situ hybridization and immunohistochemical analysis of the specimen led to a diagnosis of ISP moderate dysplasia associated with HPV infection.
authors: Universidade Federal de Sergipe, São Cristóvão, SE, Brasil.
authors: Marta Rabello
authors: MR
authors: Piva
authors: Thiago de Santana
authors: Tde S
authors: Santos
authors: Paulo Ricardo Saquete
authors: PR
authors: Martins Filho
authors: Paulo Nand
authors: PN
authors: Kumar
authors: Liane Maciel Almeida
authors: LM
authors: Souza
authors: Luiz Carlos Ferreira da
authors: LC
authors: Silva
mesh_terms: D006801:Humans; D007150:Immunohistochemistry; D017403:In Situ Hybridization; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000821:virology; D009361:Neoplasm Invasiveness; D018308:Papilloma, Inverted / Q000175:diagnosis / Q000473:pathology* / Q000821:virology; D030361:Papillomavirus Infections / Q000150:complications* / Q000175:diagnosis; D010255:Paranasal Sinus Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000821:virology