title: [Endoscopic surgery for maxillary sinus inverted papilloma].
abstract: OBJECTIVE
  To evaluate the effect of endoscopic surgery for maxillary sinus inverted papilloma.
  
  
  METHODS
  From 2000 to 2011, 50 patients with maxillary sinus inverted papilloma were treated with intranasal endoscopic surgery or combined approach. Among them, 39 cases were primary and 11 cases were recurrent, which included 17 patients with Krouse stage IIand 33 cases with Krouse stage III. Different surgical approaches were selected according to the range and positions of the lesions. One case with severe atypical hyperplasia received postoperative radiotherapy.
  
  
  RESULTS
  All cases were followed up for 3-14 years, 7 cases recurred. All occurrence within 2 years after operation. Malignant change and death was found in 1 case. After operation, epiphora occurred in 2 cases, maxillary sinus labiogingival groove fistula occurred in 2 cases, facial numbness occurred in 4 cases and incision hemorrhage occurred in 1 case. All the complications were cured after appropriate treatment.
  
  
  CONCLUSIONS
  Naso-endoscopic surgery or combined approach is a safe, effective and microinvasive treatment for patients with maxillary sinus inverted papilloma. Accurate selection of suitable approach according to the range and positions of the lesions and correct management of the base of the tumor are critical to the success of the operation.
authors.affiliation: Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Ji'nan 250012, China.
authors.forename: Liqiang
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Ji'nan 250012, China. Email: lxzebyh@163.com.
authors.forename: Xuezhong
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Ji'nan 250012, China.
authors.forename: Li
authors.initials: L
authors.lastname: Shi
authors.affiliation: Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Ji'nan 250012, China.
authors.forename: Xiaolan
authors.initials: X
authors.lastname: Cai
authors.affiliation: Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Ji'nan 250012, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Ye
authors.affiliation: Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Ji'nan 250012, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Feng
authors.affiliation: Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Ji'nan 250012, China.
authors.forename: Xinliang
authors.initials: X
authors.lastname: Pan
mesh_terms: D004724:Endoscopy / Q000379:methods*; D006801:Humans; D007766:Lacrimal Apparatus Diseases; D008443:Maxillary Sinus / Q000601:surgery*; D008444:Maxillary Sinus Neoplasms / Q000601:surgery*; D059747:Nasal Surgical Procedures; D009364:Neoplasm Recurrence, Local; D009666:Nose; D009669:Nose Neoplasms; D018308:Papilloma, Inverted / Q000601:surgery*; D010255:Paranasal Sinus Neoplasms; D011184:Postoperative Period; D012189:Retrospective Studies