Abstract
Craniofacial fibrous dysplasia (CFD) is a nonneoplasic lesion, characterized by the substitution of normal osseous tissue by proliferating fibrous stroma and immature bone tissue. CFD usually occurs by 10 years of age and the progression commonly manifests in adulthood. A 20-year-old male patient presented with a painless enlargement in the maxilla with indeterminate evolution time. Clinical examination revealed a swelling extending to the right side of maxilla and orbital floor. Radiographic aspects showed borders contiguous with normal adjacent bone and a ground-glass appearance. Incisional biopsy was performed. Microscopic examination showed lamellar bone trabeculae, varied in size, arranged parallel to fibrous connective tissue, compatible with benign fibro-osseous lesion. Multiplane sections on cone beam computed tomography showed an extensive orbital floor and maxillary involvement and increased dimensions of the occiput, base of the skull, hard palate, and zygoma. A final diagnosis was craniofacial fibrous dysplasia. Patient is under follow-up care and will undergo corrective surgery. Support: FAPEMIG.
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