颞骨骨纤维异常增殖症的HRCT表现

High-resolution CT Findings of Fibrous Dysplasia in Temporal Bone

目的:探讨颞骨骨纤维异常增殖症的HRCT表现及其诊断价值。方法:回顾性分析资料完整的6例颞骨骨纤维异常增殖症患者的HRCT资料。结果:6例中左侧颞骨受累4例,右侧受累2例。主要HRCT表现为受累部位骨膨大,根据病变密度分为变形性骨炎型4例,表现为高密度或磨玻璃样改变中可见点状或片状低密度区;硬化型2例,表现为均匀一致的高密度影。结论:HRCT可清晰显示颞骨骨纤维异常增殖症时颞骨骨质改变、病变范围及并发症,是诊断及随访本病的重要检查方法。

Objective： To discuss the high-resolution CT（HRCT） findings of fibrous dysplasia in temporal bone. Methods： HRCT findings of 6 cases with fibrous dysplasia in temporal bone were analyzed retrospectively. Results：Lesions were located in left side of temporal bone （n=4） and in the right （n= 2）. On HRCT,The invaded temporal bone was markedly and diffusely expanded. Two types of the lesion can he divided based on their density：① pagetoid type （n= 4）, which presented as a high density lesion with scattered spotty or patchy low density areas within;② sclerotic type （n=2） , showing homogeneous high density. Conclusion：The bony changes,lesion＇s extent and complications of fibrous dysplasla in temporal bonecan be clearly shown by HRCT,thus,it is an important method in the diagnosis and follow-up of the disease.