title: [Analysis of negative cordectomy specimens using CO2 laser for T1 glottic cancer].
abstract: OBJECTIVE
  This study determined presence or absence of residual cancer in the surgical specimen and analyzed outcomes.
  
  
  METHODS
  A retrospective study of 57 patients with glottic carcinoma (7 Tis, 47 T1a, and 3 T1b) treated from January 2000 to February 2010. All histological slides from the 57 patients were re-examined under the light microscope by the pathologist and the surgeon. We performed multiple biopsies and intraoperative biopsy as a diagnostic procedure.
  
  
  RESULTS
  There were 5, 4, 41, 3, and 4 types I to V cordectomies, respectively. 6 negative cordectomies (10.5%) were reported.
  
  
  CONCLUSIONS
  The endoscopic treatment of T1 glottic cancer should be as conservative as possible. This assures resection of all the malignant tissue and preserves the maximum amount of healthy tissue.
authors.affiliation: The Center of Otolaryngology, PLA Navy General Hospital, Beijing, 100048, China. navod@sohu.com
authors.forename: Hongguang
authors.initials: H
authors.lastname: Guo
authors.forename: Ping
authors.initials: P
authors.lastname: Lu
authors.forename: Jinrang
authors.initials: J
authors.lastname: Li
authors.forename: Jianjun
authors.initials: J
authors.lastname: Su
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001706:Biopsy / Q000379:methods; D005260:Female; D005931:Glottis / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007822:Laryngeal Neoplasms / Q000473:pathology* / Q000601:surgery; D007825:Laryngectomy; D007828:Laryngoscopy; D054020:Lasers, Gas; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014827:Vocal Cords / Q000473:pathology / Q000601:surgery