Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology
Case ReportPediatric cemento-ossifying fibroma of the anterior mandible: A case report
Introduction
According to the WHO classification of head and neck tumors 2017, cemento-ossifying fibroma (COF) is classified into fibro-osseous lesions, and is also categorized into odontogenic tumor [1]. This tumor mainly affects adult female, and pediatric COF affecting jaws is extremely rare. It occurs exclusively in the tooth bearing areas of the mandibular premolar and molar area [[1], [2], [3], [4], [5]].
Radiographic examination almost commonly shows a well-defined radiolucent area containing radiopaque material, and this tumor sometimes surrounded by a sclerotic border [1,6].
Histopathologically, this type of tumor is derived from the mesenchymal blast cells of the periodontal ligament, and have a potential to form fibrous tissue, cement and bone or a combination of such elements [1,7,8]. Eversole et al. has reported that these cementum-like structures are associated with membranous bone [9].
The first choice of treatment is conservative surgery with long-term follow-up [1,2,6]. It has recently reported that the range of recurrence rate of ossifying fibroma (OF) were from 12 % to 28 % [7,9,10].
As far as we investigated, there have been no case with COF involving the anterior mandible in children under the age of 10. The following report presented a rare case of COF of anterior mandibular region in an 8-year-old girl.
Section snippets
Case report
An 8-year-old girl was referred to our department for examination of painless swelling of the mandibular symphysis. The swelling has seemed to be gradually growing for 1 year since she had been noted to have the localized lesion. She had facial asymmetry, and there was a palpable bony hard swelling without redness or infection. There was no trismus, numbness, toothache, past history of facial trauma or previous similar swelling (Fig. 1A and B).
Panoramic radiography showed well-defined,
Discussion
COF is classified into fibro-osseous and osteochondromatous lesion, and is also categorized into benign mesenchymal odontogenic tumors. COF is one of the three clinicopathological variants of OF, which have been identified as COF, juvenile trabecular ossifying fibroma (JTOF) and juvenile psammomatoid ossifying fibroma (JPOF). The synonyms for COF are central OF, cementifying fibroma and periodontoma [1]. Epidemiology, it has proposed that the peak incidence of COF has been in the third and
Ethical approval
Written informed consent was obtained from the patient and her parents.
Declaration of Competing Interest
Nothing to disclose.
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