Manejo quirúrgico de la displasia fibrosa monostótica de tamaño inusual en la mandíbula

Abstract

Introduction: Fibrous dysplasia is a rare bone disorder in which normal bone is replaced by abnormal fibro-osseous tissue. It most commonly affects the long bones, craniofacial bones, ribs, and pelvis. Approximately one-third of monostotic presentations are located in the craniofacial region. Objective: To present the surgical management of an unusually large monostotic fibrous dysplasia in the jaw. Case presentation: A 36-year-old female patient diagnosed with HIV presented to the clinic due to a significant swelling in the facial region. Clinical examination showed labial and lingual bone expansion in the anterior part of the mandible. Radiographic examination revealed a lesion with mixed characteristics, showing a 'ground-glass' appearance. The diagnosis of fibrous dysplasia was confirmed through an intraosseous biopsy with histopathological examination. A mandibulectomy was performed with excellent functional and aesthetic results. Conclusions: When fibrous dysplasia exhibits considerable growth in the facial region, aesthetic and functional complications may be observed. Surgical treatment is a challenge for the surgeon, not only for the removal of the lesion but also for restoring the affected functions and preventing sequelae.