title: [The nasosinus inverted papilloma with intracranial extension].
abstract: OBJECTIVE
  To study the treatment of inverted papilloma (NIP) with intracranial extension.
  
  
  METHODS
  Nine patients of NIP all suffered from the operation. Six patients with anterior skull base erosion suffered from large tumor resections via combined craniofacial and cranial approach. Three patients suffered from small tumor resections via transfrontal and transethmoidal sinus approach. The defects of basicranial bone and dura were repaired at the same time. Five patients were found the tissue canceration in the postoperation.
  
  
  RESULTS
  In 7 patients followed-up from 3 to 13 years, no one has recurrenced.
  
  
  CONCLUSIONS
  The canceration probability of NIP with intracranial extension should be sufficiently considered. The tumor resection via combined craniofacial approach or transfrontal approach must be based on the tumor size and extension, and removed completely.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, China-Japan Union Hospital, Jilin University, Changchun 130031.
authors.forename: Yipeng
authors.initials: Y
authors.lastname: Wang
authors.forename: Jun
authors.initials: J
authors.lastname: Zheng
authors.forename: Yiduo
authors.initials: Y
authors.lastname: Hu
authors.forename: Guangyu
authors.initials: G
authors.lastname: Li
authors.forename: Zhanquan
authors.initials: Z
authors.lastname: Yang
mesh_terms: D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009669:Nose Neoplasms / Q000473:pathology / Q000601:surgery*; D018308:Papilloma, Inverted / Q000473:pathology / Q000601:surgery*; D010255:Paranasal Sinus Neoplasms / Q000473:pathology / Q000601:surgery*