高频超声对外周神经鞘瘤的诊断价值

Value of high frequency ultrasonography in the diagnosis of peripheral neurilemomas

目的探讨高频超声对外周神经鞘瘤的诊断价值。方法回顾性分析16例经手术和病理证实的外周神经鞘瘤的高频超声声像图表现。结果良性神经鞘瘤11例,以低回声为主,单发,边界清,有包膜,可移动,血流丰富;恶性神经鞘瘤5例,可单发或多发,也以低回声为主,但回声不均,边界不清晰且与周围组织粘连,质地较硬,血流较丰富。结论高频超声可直接显示外周神经鞘瘤的内部结构、大小、形态、回声及血供情况,为临床诊断及鉴别诊断提供了重要依据。

Objective To evaluate the value of high frequency ultrasonography in the diagnosis of peripheral neurilemoma.Methods Ultrasonographic features of 16 cases with peripheral neurilemomas confirmed pathologically were analysed retrospectively.Results There were 16 cases of peripheral neurilemomas in our study comprised of 11 benign and 5 malignant peripheral neurilemomas.With regard to the echogenicity,homogeneity,border appearance and motion,the sonographic characteristics of benign peripheral neurilemomas were mostly hypoechoic,homogeneous,solitary and movable mass with well-defined appearance and increased vascular signals.However,malignant peripheral neurilemomas were solitary or multiple masses with mainly hypoechoic echogenicity and inhomogeneous homogeneity.The border appearances were unclear,and the masses were immovably adhesive with surrounding tissue.The vascularity on color Doppler was mild increased in malignant lesions.Conclusion High frequency ultrasonography shows the size,morphosis,echoegenicity and blood supply of peripheral neurilemomas directly,which plays an important role in the diagnosis of peripheral neurilemomas.