title: Cemento-ossifying fibroma of the mandible.
abstract: BACKGROUND
  Cemento-ossifying fibroma is a rare benign tumor most often discovered incidentally.
  
  
  METHODS
  A 72-year-old patient was referred for a subclinical lesion of the mandible. The orthopantomogram showed a well-circumscribed radiolucent osteolytic image, 1 cm in diameter, on the mandibular angle. On CT, the single lesion had a tissue aspect with a peripheral halo without enhancement after contrast injection. A cortical lacuna on the lingual side was noted. Surgical enucleation of the lesion was performed. The pathological examination confirmed the ossifying fibroma.
  
  
  CONCLUSIONS
  Slow and progressive, cemento-ossifying fibroma is a rare benign tumor that reaches the maxilla and more frequently the mandible. The ossifying and cementifying fibromas are differentiated by their clinical, radiological, and histological findings. The authors discuss the pathogenesis and radiological signs guiding the choice of diagnostic and therapeutic methods. The treatment is surgical with an enucleation or wider resection with bone reconstruction for large fibromas.
authors.affiliation: Service de chirurgie maxillofaciale, CHU Trousseau, route de Loches, 37044 Tours cedex, France.
authors.forename: J-P
authors.initials: JP
authors.lastname: Trijolet
authors.forename: J
authors.initials: J
authors.lastname: Parmentier
authors.forename: F
authors.initials: F
authors.lastname: Sury
authors.forename: D
authors.initials: D
authors.lastname: Goga
authors.forename: N
authors.initials: N
authors.lastname: Mejean
authors.forename: B
authors.initials: B
authors.lastname: Laure
mesh_terms: D000368:Aged; D002455:Cell Division / Q000502:physiology; D002485:Cementoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D005347:Fibroblasts / Q000473:pathology; D018214:Fibroma, Ossifying / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans; D033162:Incidental Findings; D008297:Male; D008339:Mandibular Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D010006:Osteoblasts / Q000473:pathology; D010011:Osteocytes / Q000473:pathology; D011862:Radiography, Panoramic; D014057:Tomography, X-Ray Computed