da Costa Eliana Dantas, Peyneau Priscila Dias, Ferreira Liana Matos, Oliveira Matheus Lima, Ambrosano Glaucia Maria Bovi
Gen Dent. 2018 Sep-Oct;66(5):e1-e4.
Osteomas are benign, asymptomatic fibro-osseous tumors that are most commonly observed in the paranasal sinuses and sometimes are found in imaging examinations that were taken for other reasons. Giant osteomas are rarely found in the frontal and ethmoid sinuses but, when they are, they may cause intracranial and orbital complications. The aims of this case report are to describe a frontoethmoid osteoma in a 40-year-old woman, discuss the characteristics of this lesion through cone beam computed tomography (CBCT) imaging, and review the options for treatment. A CBCT examination performed for the purpose of orthodontic diagnosis revealed the presence of a large, well-defined, lobular, hyperdense mass that occupied a sizeable area of the frontal sinus and extended to the ethmoid sinus. The patient did not report any pain. Based on the physical and imaging characteristics of the mass, the location and size of the lesion, and the patient's age, the diagnosis was a giant frontoethmoid osteoma. Due to its enhanced field of view, CBCT may enable earlier diagnosis of lesions that affect the maxillofacial region.
骨瘤是一种良性、无症状的纤维骨性肿瘤，最常见于鼻窦，有时在因其他原因进行的影像学检查中被发现。巨大骨瘤很少见于额窦和筛窦，但一旦出现，可能会引起颅内和眶内并发症。本病例报告的目的是描述一名40岁女性的额筛骨瘤，通过锥形束计算机断层扫描（CBCT）成像讨论该病变的特征，并回顾治疗方案。为正畸诊断进行的CBCT检查显示，存在一个大的、边界清晰的、分叶状的高密度肿块，占据了额窦的相当大区域并延伸至筛窦。患者未报告任何疼痛。根据肿块的体格检查和影像学特征、病变的位置和大小以及患者的年龄，诊断为巨大额筛骨瘤。由于其视野增强，CBCT可能有助于更早诊断影响颌面区域的病变。
