title: Juvenile ossifying fibroma of the mandible: a case report.
abstract: BACKGROUND
  Fibro-osseous lesions of the jaws, including juvenile ossifying fibroma, pose diagnostic and therapeutic difficulties due to their clinical, radiological and histological variability. The aim of this study was to report the outcome of a 9 years old girl with diagnosed juvenile ossifying fibroma treatment.
  
  
  METHODS
  A 9 years old girl presented with a 6 x 8 cm sized hard fixed tumour on right ramus and corpus of the mandible. On the radiological examination tumour showed an irregular but well bordered, unilocular and expansive lesion on the right corpus and ramus of the mandible. There was no teeth displacement or teeth root resorbtion. Microscopically, the tumour had trabeculae, fibrillary osteoid and woven bone. After the clinical, radiological (panoramic radiography, computed tomography and magnetic resonance imaging) and histologic analysis it was diagnosed juvenile ossifying fibroma. In the history of the patient there has been an acute lymphocytic leukaemia in the remission for 3 years.
  
  
  RESULTS
  Because of large size of mandibular tumour, resultant expansion and destruction of mandibular cortex, the patient underwent right hemimandibulectomy using transmandibular approach. There was no recurrence or complications for two years follow-up.
  
  
  CONCLUSIONS
  Although juvenile ossifying fibroma is an uncommon clinical entity, its aggressive local behaviour and high recurrence rate means that it is important to make an early diagnosis, apply the appropriate treatment and, especially, follow-up the patient over the long-term.
authors.affiliation: Department of Otorhinolaryngology and Head & Neck Surgery, Meram Medical Faculty, Selçuk University, Konya Turkey.
authors.forename: Bahar
authors.initials: B
authors.lastname: Keles
authors.affiliation: Department of Otorhinolaryngology and Head & Neck Surgery, Meram Medical Faculty, Selçuk University, Konya Turkey.
authors.forename: Mutlu
authors.initials: M
authors.lastname: Duran
authors.affiliation: Department of Otorhinolaryngology and Head & Neck Surgery, SSK Okmeydani Education Hospital, Istanbul Turkey.
authors.forename: Yavuz
authors.initials: Y
authors.lastname: Uyar
authors.affiliation: Department of Otorhinolaryngology and Head & Neck Surgery, Meram Medical Faculty, Selçuk University, Konya Turkey.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Azimov
authors.affiliation: Department of Otorhinolaryngology and Head & Neck Surgery, Meram Medical Faculty, Selçuk University, Konya Turkey.
authors.forename: Abdullah
authors.initials: A
authors.lastname: Demirkan
authors.affiliation: Department of Pathology, Meram Medical Faculty, Selçuk University, Konya Turkey.
authors.forename: Haci Hasan
authors.initials: HH
authors.lastname: Esen
keywords: lymphocytic leukemia.; mandibular diseases; mandibular neoplasms; oral surgery; ossifying fibroma