title: Clinicopathological analysis of histological variants of ameloblastoma in a suburban Nigerian population.
abstract: BACKGROUND
  This study was carried out to establish the relative incidence and provide clinico-pathologic information on the various histological types of ameloblastoma seen at the Obafemi Awolowo University Teaching Hospital complex, Ile-Ife in order to provide a baseline data which will be of significance to the pathologist and clinician.
  
  
  METHODS
  Clinico-pathologic data on a total of 77 histologically diagnosed cases of ameloblastoma archieved at the Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife over a 15 year period were obtained and analysed descriptively.
  
  
  RESULTS
  Follicular ameloblastoma was the most common histological type (50 cases, 64.9%), followed by plexiform ameloblastoma (10 cases, 13.0%). 4 (5.2%) cases of desmoplastic and 3 (3.9%) cases of acanthomatous ameloblastoma were seen while the basal cell variant accounted for 2 (2.6%) cases. Only 1 case of the unicystic type was seen. Some of the 77 cases presented as a mixture of two or more histological types. Ameloblastoma occurred over an age range of 11 to 70 years with a peak age incidence in the 3rd decade.
  
  
  CONCLUSIONS
  This study provides a baseline data on variants of ameloblastoma as obtained in a suburban Nigerian population. Since variants of ameloblastoma differ in biologic behaviour, the data collected in this study provides clinicopathologic information which is of significance to the pathologist and clinician.
authors.affiliation: Department of Oral/Maxillofacial Surgery and Oral Pathology, Obafemi Awolowo University, Ile Ife, Nigeria. kenad@justice.com
authors.forename: Kehinde E
authors.initials: KE
authors.lastname: Adebiyi
authors.forename: Vincent I
authors.initials: VI
authors.lastname: Ugboko
authors.forename: Ganiat O
authors.initials: GO
authors.lastname: Omoniyi-Esan
authors.forename: Kizito C
authors.initials: KC
authors.lastname: Ndukwe
authors.forename: Fadekemi O
authors.initials: FO
authors.lastname: Oginni
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000564:Ameloblastoma / Q000145:classification / Q000453:epidemiology / Q000473:pathology*; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D015994:Incidence; D007573:Jaw Neoplasms / Q000145:classification / Q000453:epidemiology / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009549:Nigeria / Q000453:epidemiology; D015995:Prevalence; D012189:Retrospective Studies; D013383:Suburban Population; D055815:Young Adult