摘要
目的探讨中耳鼓室球瘤的MRI表现。材料与方法回顾性分析经手术病理证实的13例中耳鼓室球瘤的MRI表现特征。13例均行横断面和冠状面MRI平扫加增强扫描。结果 13例鼓室球瘤均发生于下鼓室靠近鼓岬,T1WI呈等信号9例,稍高信号4例,T2WI均呈高信号影,增强呈显著异常对比强化。肿瘤最小为0.4cm×0.4cm×0.5cm,最大为1.6cm×2.0cm×2.8cm。结论 MRI在显示鼓室球瘤位置形态、信号特征及强化特点均有典型表现。
Objective:To study MRI manifestations of glomus tympanicum tumor.Materials and Methods:The manifestations of MRI were analysed retrospectively in 13 patients with glomus tympanicum tumors whom confirmed by the operation and pathology,axial and coronal high resolution MRl(plain scan and enhanced scan) were performed in all of these 13 patients.Results:Glomus tympanicum tumor in middle ear all of 13 cases occurred in the hypotympanum next to promontorium tympani.MRI show iso-or hyperintense mass on T1-weighted images,and hyperintense mass on T2-weighted images.When we increased the signal of T1WI,the tumors were enhanced obviously.The mass sive ranged from 0.4 cm×0.4 cm×0.5 cm to 1.6 cm× 2.0 cm×2.8 cm.Conclusion:It is typically to reveal the features of location,shape,and extent of glomus tympanicum tumors on MRI.
出处
《磁共振成像》
CAS
2012年第5期376-378,共3页
Chinese Journal of Magnetic Resonance Imaging
关键词
磁共振成像
鼓室球瘤
Magnetic resonance imaging
Glomus tympanicum tumor