title: Management and treatment of sinonasal inverted papilloma.
abstract: OBJECTIVE
  The aim of this paper is to describe the surgical experience of 35 patients with Inverted Papilloma (IP) of paranasal sinuses and its recurrence rate after a year of follow-up.
  
  
  METHODS
  A retrospective chart review was performed on patients presenting with IP of paranasal sinuses. Thirty-five patients comprised the focus of this study. For all patients was performed a pre-surgery TC, and for more 5 patients it was necessary to perform a Magnetic Resonance (MR) with gadolinium.
  
  
  RESULTS
  Among 35 patients selected, 18 patients underwent to open surgery, 4 patients had a combined approach with endoscopy and open surgery, while 13 patients were managed only with an endoscopic approach, with a minimum of 1 year of follow-up. Our results highlighted that the global percentage of success 12 months after the treatment was 93% and it not vary according to the tipology of the approach used if a radical excision of the lesion is achieved. More in depth, among 35 cases, only 2 patients were found to have recurrences and were treated with coronal and endoscopic approach.
  
  
  CONCLUSIONS
  It is fundamental to underline that surgery must be carried on in a radical manner to treat these tend to recur. A complete removal of the lesion and bone peripheral border filing are essential to perform a correct and definitive treatment. Also, endoscopic approach can be taken into account when tumors are localized median to a sagittal plan crossing the orbit median wall and when they did not massively compromised paranasal sinus walls.
authors.affiliation: Department of Oral and Maxillo-Facial Sciences, "Sapienza" University of Rome, Italy.
authors.forename: Claudio
authors.initials: C
authors.lastname: Ungari
authors.affiliation: Department of Maxillo-Facial Surgery, Policlinico Umberto I, "Sapienza" University of Rome, Italy.
authors.forename: Emiliano
authors.initials: E
authors.lastname: Riccardi
authors.affiliation: Department of Maxillo-Facial Surgery, Policlinico Umberto I, "Sapienza" University of Rome, Italy.
authors.forename: Gabriele
authors.initials: G
authors.lastname: Reale
authors.affiliation: Department of Oral and Maxillo-Facial Sciences, "Sapienza" University of Rome, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Agrillo
authors.affiliation: Department of Oral and Maxillo-Facial Sciences, "Sapienza" University of Rome, Italy.
authors.forename: Claudio
authors.initials: C
authors.lastname: Rinna
authors.affiliation: Department of Maxillo-Facial Surgery, Policlinico Umberto I, "Sapienza" University of Rome, Italy.
authors.forename: Valeria
authors.initials: V
authors.lastname: Mitro
authors.affiliation: Department of Maxillo-Facial Surgery, Policlinico Umberto I, "Sapienza" University of Rome, Italy.
authors.forename: Fabio
authors.initials: F
authors.lastname: Filiaci
keywords: inverted papilloma; papilloma diagnosis; papilloma surgery; sinus endoscopic surgery; sinus open surgery