title: Karyometric analysis of nasal polyps.
abstract: OBJECTIVE
  Nuclear characteristics of epithelial cells in nasal polyps were analyzed.
  
  
  METHODS
  The slides of 35 patients who underwent surgery for nasal polyposis and 18 slides of normal mucosa were examined. The specimens were stained with hematoxylin-eosin. Tissue sections were analyzed by a CCD camera and the Karyotype Program of Human Cytogenetics Nomenclature System on a Macintosh computer (OS 9). Fifty epithelial cells in each slide were randomly selected and transferred to the automated karyotyping system and photographed. The diameters of the nuclei were measured and some peculiar nuclear features were examined, including unsmooth appearance of the nuclear membrane, anaphase-bridge, and binucleation.
  
  
  RESULTS
  There were significant differences between nasal polyp and normal mucosa groups in terms of nuclear diameter, perimeter, and volume, with all variables being greater in the nasal polyp group (p=0.001). Unusual nuclear features differed significantly (unsmooth nuclear membrane appearance, p<0.001; anaphase-bridge, p=0.041; binucleation, p=0.018), as well.
  
  
  CONCLUSIONS
  Epithelial cells of nasal polyps exhibit nuclear instability.
authors.affiliation: Department of Otolaryngology, Medicine Faculty of Cumhuriyet University, Sivas, Turkey. altan11@hotmail.com
authors.forename: Altan
authors.initials: A
authors.lastname: Yildirim
authors.forename: Oztürk
authors.initials: O
authors.lastname: Ozdemir
authors.forename: Eylem
authors.initials: E
authors.lastname: Gül
authors.forename: Beyazit
authors.initials: B
authors.lastname: Yildirim
authors.forename: Sahende
authors.initials: S
authors.lastname: Elagöz
authors.forename: Tanfer
authors.initials: T
authors.lastname: Kunt
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D002467:Cell Nucleus / Q000473:pathology*; D004847:Epithelial Cells / Q000473:pathology*; D005260:Female; D006801:Humans; D007620:Karyometry; D007621:Karyotyping; D008297:Male; D009297:Nasal Mucosa / Q000166:cytology; D009298:Nasal Polyps / Q000473:pathology*