EC Dental Science

Background: Ossifying fibroma is a rare odontogenic tumor that commonly represent intraosseous non-functional osseous structure forms. Juvenile ossifying fibroma is considered an aggressive rapidly growing sub-type with tendency to occur in the early decades of life. Histological features of juvenile ossifying fibroma can manifest as cellular fibroblastic tissue admixed with woven bone trabeculae with varying histologic presentations. Diagnosis of juvenile ossifying fibroma made based on patient's age, site of the lesion, and clinical behaviour along with the histopathological findings.

Case Report: A 13-year-old female was referred to the oral and maxillofacial surgery department complaining from swelling in the left mandible. Clinical examination revealed expansile lesion on left side of the mandible. Radiographic examination showed hypodense lesion in posterior body of mandible extending to the angle of the mandible related to lower left molars and extending to inferior border of mandible causing thinning to the cortex. Histopathological examination revealed cellular fibrous connective tissue containing spherical ossicles composed of a basophilic center with an eosinophilic rim, and brush borders that blend into the surrounding stroma. The diagnosis was juvenile ossifying fibroma.

Conclusion: Definite diagnosis of Juvenile ossifying fibroma may be challenging hence detailed examination should be done to differentiate from other fibro-osseous lesions as its management may varies from surgical enucleation to complete resection and reconstruction.

Keywords: Juvenile; Ossifying; Fibroma; Mandibular

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