title: A 5 year retrospective study of biopsied jaw lesions with the assessment of concordance between clinical and histopathological diagnoses.
abstract: BACKGROUND
  The jaw can be affected by several lesions that manifest in the oral cavity, but little is known about their distribution patterns in various populations.
  
  
  OBJECTIVE
  This study presents the frequency and distribution of biopsied jaw lesions recorded in Faculty of Dentistry and gathers the information including provisional and final diagnosis of the lesions.
  
  
  METHODS
  Biopsy of 1938 lesions (2008-2013) was reviewed and 1473 lesions were included in this study. The provisional diagnosis and histopathological validations of lesions were compared. Data on the location of the lesion, as well as patient demographics, were also evaluated. The lesions were divided into three major groups as 1 - developmental/reactive and inflammatory lesions of the jaw, 2 - cystic lesion and 3 - tumor and tumor-like lesions.
  
  
  METHODS
  The variables were recorded and analysed using descriptive statistics.
  
  
  RESULTS
  Three hundred and ninety-six lesions were in Group 1 and periapical granuloma was the most frequent diagnosis. Seven hundred and eighty-nine lesions were in Group 2 and the radicular cyst was the most frequent diagnosis. Two hundred and eighty-eight lesions were in Group 3 and the keratocystic odontogenic tumor was the most frequent. Two hundred and ninety-one biopsied lesions were in disagreement with respect to the diagnoses on clinical and histopathological examination.
  
  
  CONCLUSIONS
  Consequently, a provisional diagnosis of some of the malignant lesions was reactive, inflammatory, cystic or benign lesions, therefore the importance of evaluation of the specimen is emphasized.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Gazi University, Ankara, Turkey.
authors.forename: Elif
authors.initials: E
authors.lastname: Peker
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Gazi University, Ankara, Turkey.
authors.forename: Faruk
authors.initials: F
authors.lastname: Öğütlü
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Gazi University, Ankara, Turkey.
authors.forename: İnci Rana
authors.initials: İR
authors.lastname: Karaca
authors.affiliation: Department of Oral Pathology, Faculty of Dentistry, Gazi University, Ankara, Turkey.
authors.forename: Elif Sibel
authors.initials: ES
authors.lastname: Gültekin
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Yeni Yüzyıl University, Istanbul, Turkey.
authors.forename: Merve
authors.initials: M
authors.lastname: Çakır
keywords: Clinical provisional diagnosis; demographic study; jaw lesions