title: Odontogenic and nonodontogenic cysts in Istanbul: analysis of 5088 cases.
abstract: BACKGROUND
  The aim of this study was to determine the prevalence of 5088 odontogenic and nonodontogenic cysts over a 40-year period in the Turkish population and to compare results with findings in the literature.
  
  
  METHODS
  The records of odontogenic and nonodontogenic cysts, occurring during 1971 to 2010, were collected and analyzed for anatomic site, age range, and sex distribution.
  
  
  RESULTS
  Among 5088 odontogenic and nonodontogenic cyst biopsies, 5003 cases (98.3%) were classified as odontogenic, whereas only 85 cases (1.7%) were nonodontogenic. In the former group, the most frequent diagnosis was radicular cyst (52.09%), followed by odontogenic keratocyst (20.6%) and dentigerous cyst (10.39%). Maxilla to mandible ratio was 1.13:1. The mean age of patients was 36.33 years (range, 2-87 years). The cysts were slightly more prevalent among male patients (57.70%).
  
  
  CONCLUSIONS
  The knowledge of the biological behavior and clinicopathologic features of jaw cysts constitute key aspects to provide early diagnosis and adequate surgery.
authors.affiliation: Department of Tumour Pathology, Institute of Oncology, Istanbul University, Istanbul, Turkey. msoluk@istanbul.edu.tr
authors.forename: Merva Soluk
authors.initials: MS
authors.lastname: Tekkesin
authors.forename: Vakur
authors.initials: V
authors.lastname: Olgac
authors.forename: Nihan
authors.initials: N
authors.lastname: Aksakalli
authors.forename: Canan
authors.initials: C
authors.lastname: Alatli
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008336:Mandibular Diseases / Q000453:epidemiology*; D008439:Maxillary Diseases / Q000453:epidemiology*; D008875:Middle Aged; D009631:Nonodontogenic Cysts / Q000453:epidemiology*; D009807:Odontogenic Cysts / Q000453:epidemiology*; D015995:Prevalence; D012189:Retrospective Studies; D017678:Sex Distribution; D014421:Turkey / Q000453:epidemiology; D055815:Young Adult