title: [Laryngostroboscopy in the monitoring of precancerous lesion of vocal cord and in canceration tracing].
abstract: OBJECTIVE
  To evaluate the value of laryngostroboscopy in the monitoring of precancerous lesion of vocal cord and in the canceration tracing.
  
  
  METHODS
  Fifty-two cases of precancerous lesion of vocal cord were examined under Laryngostroboscope. The modifications of mucosal wave and amplitude of vocal cord vibration were observed. All cases were monitored for 1-6 years.
  
  
  RESULTS
  The mucosal wave was weak in 45 of 52 cases (86.3%) and the amplitude of vocal cord vibration was weak in 4 of 52 cases (9.6%) with precancerous lesions. However, the mucosal wave disappeared and the amplitude of vocal cord vibration weakened in all 14 cases with early glottic cancer.
  
  
  CONCLUSIONS
  Laryngostroboscopy can be used in diagnosis of glottic precancerous lesion and distinguishing it from the early glottic cancer. It is also an effective means of canceration tracing.
authors.affiliation: Department of Otorhinolaryngology, Beijing Railway General Hospital, Beijing 100038, China.
authors.forename: F
authors.initials: F
authors.lastname: Song
authors.forename: Q
authors.initials: Q
authors.lastname: Zhang
authors.forename: J
authors.initials: J
authors.lastname: Wang
authors.forename: H
authors.initials: H
authors.lastname: Zhao
authors.forename: Y
authors.initials: Y
authors.lastname: Niu
authors.forename: X
authors.initials: X
authors.lastname: Liu
authors.forename: R
authors.initials: R
authors.lastname: Yuan
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000175:diagnosis; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007822:Laryngeal Neoplasms / Q000175:diagnosis*; D007828:Laryngoscopy / Q000379:methods*; D008297:Male; D011230:Precancerous Conditions / Q000175:diagnosis*; D014827:Vocal Cords / Q000473:pathology*