Conservative surgical approach of ossifying fibroma in atypical location of the jaw: case report
DOI:
https://doi.org/10.5335/rfo.v25i2.10899Keywords:
Ossifyng Fibroma, Developmental Bone Diseases, Oral SurgeryAbstract
The ossifying fibroma (FO) is a benign fibro-osseous neoplasm of the craniofacial region of odontogenic origin, formed from multipotent mesenchymal cells of the periodontal ligament, which are capable of forming bone, fibrous tissue and cementum. It is believed that previous exodontia, infections, trauma or a disturbance of congenital origin in bone maturation could serve as predisposing factors for FO development. Radiographically, the initial FO lesions are represented by a radiolucent, unilocular, round or oval image with well circumscribed margin. In the late stage, the mineralized component is surrounded by a thin fibrous capsule represented by a thin radiolucent line, which surrounds the entire lesion. The objective of this work is to discuss the surgical approach of a FO located in the atypical region of the mandible. Case report: leucoderma patient, 18 years, female, it were possible to note a slight volume increase in the posterior mandible region. The imaging examination identified a mixed lesion, well defined, however non-corticalised, measuring about 3 cm x 2.5 cm. The patient was submitted to an incisional biopsy and the diagnosis of ossifying fibroma was confirmed. We opted for a curettage followed by a peripheral osteotomy of the lesion and rehabilitation of the region with lyophilized bovine bone graft, besides the installation of a rebuilding plate at the base of the mandible system 2.4mm. Final considerations: it is necessary to have knowledge about lesions of mixed radiographic appearance, which can make differential diagnosis with FO so that a correct intervention can be performed, since for each lesion we have a different approach.
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