Imaging Sci Dent.  2020 Mar;50(1):65-71. 10.5624/isd.2020.50.1.65.

Three types of ossifying fibroma: A report of 4 cases with an analysis of CBCT features

• Jih MK
• Kim JS

• KMID: 2471847
• DOI: http://doi.org/10.5624/isd.2020.50.1.65

Abstract

Ossifying fibroma is a slow-growing benign neoplasm that occurs most often in the jaws, especially the mandible. The tumor is composed of bone that develops within fibrous connective tissue. Some ossifying fibromas consist of cementum-like calcifications, while others contain only bony material; however, a mixture of these calcification types is commonly seen in a single lesion. Of the craniofacial bones, the mandible is the most commonly involved site, with the lesion typically inferior to the premolars and molars. Ossifying fibroma of the jaw shows a female predominance. Some reports of ossifying fibroma have been published in the literature; however, this report continues the research on this topic by detailing 3 types of ossifying fibroma findings on panoramic radiographs and cone-beam computed tomographic images of 4 patients. The radiographs of the presented cases could help clinicians understand the variations in the radiographic appearance of this lesion.

Keyword

Ossifying Fibroma; Benign Tumor; Cone-Beam Computed Tomography; Mandible

MeSH Terms

Bicuspid
Cone-Beam Computed Tomography
Connective Tissue
Female
Fibroma, Ossifying*
Humans
Jaw
Mandible
Molar

Figure

• 

  Fig. 1 A. A panoramic radiograph showing an oval-shaped radiolucency with a well-defined border in the left posterior mandible. The mandibular canal is displaced inferiorly. B. A coronal cone-beam computed tomographic (CBCT) image shows a concentrically corticated lesion in the left mandible. Radiopaque foci are observed within the lesion, and the lesion has slightly expanded to the buccal side. C. An axial CBCT image shows buccal expansion of the lesion. There are radiopaque foci within the lesion, and a thin, radiopaque rim is visible. D. A sagittal CBCT image shows a well-defined radiolucent lesion. The mandibular canal is displaced inferiorly.

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  Fig. 2 A. A panoramic radiograph shows a round radiolucency around the distal root of the left first mandibular molar. The root of the second molar is displaced distally. B. A coronal CBCT image shows a well-defined mixed radiopaque and radiolucent lesion in the left mandible. The lesion has slightly expanded to the lingual side. C. An axial CBCT image shows showing lingual expansion of the lesion. Radiopaque foci are observed within the lesion, and a thin, radiopaque rim is visible. D. A sagittal CBCT image shows a moderately defined lesion border.

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  Fig. 3 A. A panoramic radiograph shows a round mixed radiopaque and radiolucent lesion around the root of the left first mandibular molar. B. A coronal CBCT image shows a mixed radiopaque and radiolucent lesion. The lesion is expanded to the buccal side. C. An axial CBCT image shows asymmetrical buccal-lingual expansion and a thin, radiolucent rim. D. A sagittal CBCT image shows a mixed radiopaque-radiolucent lesion. The mandibular canal is displaced inferiorly.

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  Fig. 4 A. A panoramic radiograph shows a round radiopaque lesion surrounded by a radiolucent rim around the roots of the left first and second mandibular molars. B. A coronal CBCT image shows a radiopaque lesion surrounded by a radiolucent rim. No expansion of the lesion is visible. C. An axial CBCT image shows slight lingual expansion of the lesion. D. A sagittal CBCT image shows a radiopaque lesion surrounded by a radiolucent rim. The mandibular canal is displaced inferiorly.

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