老年颈部神经源肿瘤的MRI诊断

Magnetic resonance imaging diagnosis of the senile cervical neurogenic tumours

目的探讨磁共振成像(MR I)对颈部神经源肿瘤的定位、定性诊断价值。方法回顾性分析经手术及病理证实的颈部神经源肿瘤MR I 31例,包括神经鞘瘤23例、神经纤维瘤7例、恶性神经源肿瘤1例。结果依据肿瘤引起的附近间隙、血管、肌肉等移位方向进行肿瘤定位。神经鞘瘤病理上有不同组成成分,因此可根据MR I的信号特点及增强后表现对其作出定性判断。结论MR I是诊断颈部神经源肿瘤的有效方法,最有价值的诊断指征为肿瘤的部位、肿瘤与邻近结构的关系以及肿瘤的信号变化。

Objective To study the diagnostic value of magnetic resonance imaging （MRI） in the localization and characterization of cervical neurogenic tumor. Methods 31 cases of MRI of the cervical neurogenic tumour proved by surgery and pathology were reviewed, which included schwannoma （ n = 23 ）, neurofibroma （ n = 7 ） and malignant neurogenic tumour （ n = 1 ）. Results The tumor was located according to the displacement direction of adjacent clearance, vessel and muscle caused by the tumour. As the schwannoma had different component＇s pathologically, so a characteristic diagnosis could be made basing on its character of MRI. Conclusions MRI is an effective method for diagnosis of cervical neurogenic tumours. The most valuable diagnostic parameters include location of the tumour, relationship between the tumour and the adjacent great vessels as well as changes of tumour signal.