title: Transnasal endoscopic medial maxillectomy in recurrent maxillary sinus inverted papilloma.
abstract: Maxillary sinus inverted papilloma entails medial maxillectomy and is associated with high incidence of recurrence.
  
  
  
  To study the impact of prior surgery on recurrence rate after transnasal endoscopic medial maxillectomy.
  
  
  
  Eighteen patients with primary and 33 with recurrent maxillary sinus inverted papilloma underwent transnasal endoscopic medial maxillectomy. Caldwell-Luc operation was the primary surgery in 12 patients, transnasal endoscopic resection in 20, and midfacial degloving technique in one. The follow-up period ranged between 2 to 19.5 years with an average of 8.8 years.
  
  
  
  Recurrence was detected in 8/51 maxillary sinus inverted papilloma patients (15.7 %), 1/18 of primary cases (5.5 %), 7/33 of recurrent cases (21.2 %); 3/20 of the transnasal endoscopic resection group (15%) and 4/12 of the Caldwell-Luc group (33.3%). Redo transnasal endoscopic medial maxillectomy was followed by a single recurrence in the Caldwell-Luc group (25%), and no recurrence in the other groups.
  
  
  
  Recurrence is more common in recurrent maxillary sinus inverted papilloma than primary lesions. Recurrent maxillary sinus inverted papilloma after Caldwell-Luc operation has higher incidence of recurrence than after transnasal endoscopic resection.
authors.forename: Reda H
authors.initials: RH
authors.lastname: Kamel
authors.forename: Ahmed F
authors.initials: AF
authors.lastname: Abdel Fattah
authors.forename: Ayman G
authors.initials: AG
authors.lastname: Awad
mesh_terms: D004724:Endoscopy / Q000379:methods*; D006801:Humans; D008443:Maxillary Sinus / Q000473:pathology / Q000601:surgery*; D008444:Maxillary Sinus Neoplasms / Q000473:pathology*; D009669:Nose Neoplasms / Q000601:surgery*; D018308:Papilloma, Inverted / Q000473:pathology*; D014057:Tomography, X-Ray Computed