摘要
目的 探讨胆脂瘤型中耳炎的高分辨率CT(HRCT)表现、诊断和鉴别诊断 .方法 回顾分析 42例 (4 5耳 )经手术和病理证实的胆脂瘤型中耳炎病人的HRCT扫描表现 .结果 胆脂瘤型中耳炎HRCT表现有 :(1)鼓室、鼓窦内软组织影 ,多表现为团块状 ;(2 )听骨移位和破坏 ;(3)骨壁破坏 :盾板骨及鼓室外恻壁破坏常见 ,后期可出现乙状窦壁、鼓室天盖、半规管和面神经管等的破坏 ;(4 )鼓膜增厚、内陷 ;(5 )乳突硬化和骨质破坏 .结论 胆脂瘤型中耳炎具有特征性CT表现 .HRCT扫描能准确诊断早期胆脂瘤 ,对指导临床治疗有重要意义 .
Objective To study the high-resolution CT (HRCT) features, diagnosis and differential diagnosis of chronic otitis media with cholesteatoma. Methods HRCT images of 42 patients (45 ears) with cholesteatoma were analyzed retrospectively. All cases were confirmed by operation and pathology. Results CT finding of chronic otitis media with cholesteatoma:(1)Abnormal soft-tissue in tympanic cavity and antrum, most was mass-like.(2)The ossicular chain shifted and destroyed.(3)The bone erosion of secutum and lateralis wall of tympanic cavity was common and early. Sigmoid sinus plate, tegment tympanic, semricircular canal, facial nerve canal et al could be destroyed in late cholesteatoma.(4)Tympanic membrane increased thickness and sunk inside. (5)Mastoid was sclerotic and bone erosion. Conclusions HRCT features of chronic otitis media with cholesteatoma help for early diagnosis and has significant value for directing clinid treatment.
出处
《现代临床医学生物工程学杂志》
CAS
2001年第5期337-339,共3页
Journal of Modern Clinical Medical Bioengineering
