title: Modified endoscopic maxillary medial sinusotomy for sinonasal inverted papilloma with attachment to the anterior medial wall of maxillary sinus.
abstract: OBJECTIVE
  The endoscopic management of inverted papilloma (IP) has gained in popularity over the last 15 years. However, the appropriate management of lesions involving the anterior medial wall of the maxillary sinus still has to be determined.
  
  
  METHODS
  We performed a retrospective review of the surgical results for patients with IP attached to the anterior medial wall of the maxillary sinus in the Otolaryngology, Head and Neck Surgery Department, Beijing TongRen Hospital. The tumors were removed by using our surgical technique of modified endoscopic maxillary medial sinusotomy, which was defined as an extended endoscopic medial maxillectomy with preservation of the nasolacrimal duct and inferior turbinate. Sinus endoscopy was used to screen for disease after endoscopic resection and the clinical outcomes were analyzed.
  
  
  RESULTS
  A total of 7 patients (4 males and 3 females) were identified. Pre- and postoperative pathological examinations revealed inverted papilloma as the diagnosis. All tumors were defined as Krouse III lesions. There were no complications recorded as a result of surgery. All patients remain disease free with a mean follow-up of 35.7 months (range 20-68 months).
  
  
  CONCLUSIONS
  Sinonasal IP with attachment to the anterior medial portion of the maxillary sinus can be treated successfully using modified endoscopic maxillary medial sinusotomy with preservation of the nasolacrimal duct and inferior turbinate.
authors.affiliation: Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.
authors.forename: Chengshuo
authors.initials: C
authors.lastname: Wang
authors.forename: Demin
authors.initials: D
authors.lastname: Han
authors.forename: Luo
authors.initials: L
authors.lastname: Zhang
mesh_terms: D000328:Adult; D000368:Aged; D004724:Endoscopy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D009301:Nasolacrimal Duct / Q000601:surgery; D018308:Papilloma, Inverted / Q000473:pathology / Q000601:surgery*; D010255:Paranasal Sinus Neoplasms / Q000473:pathology / Q000601:surgery*; D012189:Retrospective Studies; D014420:Turbinates / Q000601:surgery