Gen Dent. 2023 Jul-Aug;71(4):31-35.
Intraosseous myofibroma is a rare tumor of benign nature, slow growth, and low morbidity. The aim of this article is to report a case of pathologic fracture associated with the incidental diagnosis of myofibroma in the mandible of an adolescent. A 15-year-old girl reported that she experienced a physical assault resulting in facial injuries 1 month previously and had since experienced severe pain, malocclusion, and chewing difficulty. The cone beam computed tomographic examination revealed multiple features suggestive of pathologic fracture associated with a hypodense lesion with lobulated limits, as well as expansion and thinning of the cortical bone in the left mandible. The histopathologic diagnosis of the lesion indicated myofibroma. Treatment consisted of enucleation and curettage of the lesion with reduction and internal fixation of the fracture. After 18 months, the osteosynthesis plates and an impacted mandibular third molar were removed. Curettage of the lesion in association with treatment of the mandibular fracture proved to be effective for both bone consolidation and absence of recurrence while restoring mandibular functionality.
骨内肌纤维瘤是一种罕见的良性肿瘤，生长缓慢，发病率低。本文旨在报告一例青少年下颌骨病理性骨折合并肌纤维瘤的偶然诊断。一名 15 岁女孩报告说，她在 1 个月前遭受了一次人身攻击，导致面部受伤，此后一直感到剧烈疼痛、咬合不正和咀嚼困难。锥形束 CT 检查显示多个特征提示与病理性骨折相关的低密度病变，以及左侧下颌骨的分叶状边界的骨膨胀和变薄。病变的组织病理学诊断为肌纤维瘤。治疗包括切除病变、骨折复位和内固定。18 个月后，取出了内固定钢板和下颌第三磨牙。切除病变联合治疗下颌骨骨折，对骨愈合和防止复发都很有效，同时恢复了下颌骨的功能。
