Radiographic features of a patient with both cemento-ossifying fibroma and keratocystic odontogenic tumor in the mandible: a case report and review of literature

Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011 Dec;112(6):798-802. doi: 10.1016/j.tripleo.2011.06.025. Epub 2011 Oct 8.


We herein describe a rare case of a 48-year-old woman with both ossifying fibroma (OF) and keratocystic odontogenic tumor (KCOT) in the mandible. CT images showed a 15 × 15 × 20-mm radiolucent-radiopaque lesion with bucco-lingual bony expansion in the left first premolar equivalent area of the mandible, and a 15 × 40 × 35-mm well-defined unilocular radiolucent lesion in the left side of the mandible, extending from the distal side of the distal root of the left second molar to the left mandibular ramus. A biopsy of the radiolucent-radiopaque lesion and fenestration surgery of the radiolucent lesion were performed. Histopathologic examination revealed a fibro-osseous lesion (FOL) and a KCOT, respectively. CT was useful in diagnosing the radiolucent-radiopaque lesion as OF and for detecting the 3-dimensional bone expansion and the contents in the lumen of the KCOT.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Bicuspid / pathology
  • Biopsy
  • Connective Tissue / pathology
  • Contrast Media
  • Dental Cementum / pathology
  • Epithelium / pathology
  • Female
  • Follow-Up Studies
  • Humans
  • Image Processing, Computer-Assisted / methods
  • Imaging, Three-Dimensional / methods
  • Keratins
  • Mandibular Neoplasms / pathology*
  • Middle Aged
  • Molar / pathology
  • Neoplasm Recurrence, Local / pathology
  • Neoplasms, Multiple Primary / pathology*
  • Odontogenic Tumors / pathology*
  • Radiographic Image Enhancement / methods
  • Radiography, Panoramic
  • Tomography, X-Ray Computed / methods


  • Contrast Media
  • Keratins