摘要
回顾分析经手术病理证实的３０耳胆脂瘤型中耳炎的高分辨力ＣＴ资料，探讨其ＣＴ扫描技术及诊断依据。采用Ｄｅｔａｉｌ或Ｂｏｎｅ方式薄层连续扫描，然后重建放大，此方法能清楚地显示颞骨及听小骨的细微结构。提出中耳胆脂瘤的高分辨力ＣＴ诊断依据为：①鼓室、鼓窦入口及鼓窦内见团块状软组织块影；②听小骨不同程度侵蚀、移位及关节异常；③鼓室、鼓窦骨质破坏，边界清楚，合并感染时边缘模糊；④严重时破坏鼓室天盖、窦盖、乙状窦壁、面神经管及半规管等。
High-resolution CT manifestations of 30 ears suffering from chronic otitis media with cholesteatoma were analysed. All the cases were confirmed by operation and pathology. We offered HRCT diagnosis proofs of cholesbeatoma:(1)abnormal soft-tissue in tympanic cavity and antrum and bone erosion;(2)disruption and dislocation of the ossicular chain;(3)erosion of the tympanum and antrum;(4)complications of cholesteatoma.Differential diagnosis of cholesteatome and scanning technique of ossicules were also discussed.
出处
《同济医科大学学报》
CSCD
北大核心
1996年第5期402-404,F003,共4页
Acta Universitatis Medicinae Tongji
关键词
中耳炎
胆脂瘤
CT
诊断
otitis media
cholesteatoma
tomography.X-ray computed
