摘要
目的:对颈静脉球瘤的CT和MRI表现进行比较分析。方法:对14例经手术和组织学证实的颈静脉球瘤的CT和MRI资料进行回顾。结果:14例颈静脉球瘤,右侧9例,左侧5例。病变呈哑铃形2例,不规则形9例,圆形3例。颞骨高分辨CT(HRCT)表现:与脑组织比较,颈静脉孔区病变呈等密度,周围骨质破坏,其中8例鼓室骨质破坏,7例斜坡骨质破坏,5例同时侵内、外听道。MRI表现:颈静脉孔区异常信号,与脑灰质比较,MRI:T1WI呈低信号8例,等信号6例,T2WI均为高信号,增强T1WI呈明显不均匀强化,10例(71%)在T2WI和增强T1WI上可显示"盐和胡椒征"。MRV:颈内静脉起始段和乙状窦受压。结论:联合使用CT和MRI能为诊疗提供更准确信息。
Objective:Comparative analysis of CT and MRI features of glomus jugulare tumor.Methods:Review the CT and MRI data of 14 cases of glomus jugulare tumor confirmed by operation and pathology.Results:14 cases of glomus jugular tumor,9 cases were on the right,5 cases were on the left.The lesion was dumbbell shape in 2 cases,9 cases were irregular,round in 3 cases. High resolution CT(HRCT):comparison with the brain tissue,jugular foramen lesions showed equal density,bone destruction,including 8 cases of tympanic bone destruction,7 cases of slope bone destruction,5 cases of the invasion,the external auditory meatus.MRI features:the abnormal signal of jugular foramen,compared with gray matter,MRI:T1WI,8 cases showed low signal,6 cases showed high signal on the signal,T2WI showed high signal,enhanced T1WI showed a heterogeneous enhancement,10 cases(71%)in T2WI and enhanced T1WI can display the 'salt and pepper' syndrome.MRV:the initial segment of the internal jugular vein and the sigmoid sinus pressure.Conclusion:The combined use of CT and MRI can provide more accurate information for the diagnosis and treatment.
