title: [Morphological study on chronic hypertrophic rhinitis treated with cryosurgery].
abstract: OBJECTIVE
  To approach the effect of cryosurgery on the mucous membrane of patients with chronic hypertrophic rhinitis.
  
  
  METHODS
  Thirty cases of chronic hypertrophic rhinitis treated with cryosurgery were observed by light, transmission and scanning electron microscopy.
  
  
  RESULTS
  Before cryosurgery, the mucous epithelia were squamous metaplastic. After the first cryosurgery, the epithelia degenerated and fell off. After the second cryosurgery, the epithelia regenerated and cilia formed.
  
  
  CONCLUSIONS
  The results showed that cryosurgery could diminish the pathological changes and improve the nasal function.
authors.affiliation: Department of Otorhinolaryngology, Harbin First Hospital, Harbin 150010.
authors.forename: H
authors.initials: H
authors.lastname: Liu
authors.forename: P
authors.initials: P
authors.lastname: Zhu
mesh_terms: D002908:Chronic Disease; D003452:Cryosurgery; D006801:Humans; D006984:Hypertrophy; D008854:Microscopy, Electron; D009297:Nasal Mucosa / Q000473:pathology*; D009584:Nitrogen / Q000627:therapeutic use; D012220:Rhinitis / Q000473:pathology / Q000601:surgery*
chemical_list: D009584:Nitrogen