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目的:研究椎管神经鞘瘤的MR表现及分型。方法:对比60 例(66个肿瘤)椎管神经鞘瘤的MR表现与病理改变。结果:T1WI呈等或稍低信号、T2 信号高于脊髓、增强为均匀强化31 个肿瘤,病理证实为实质性肿瘤;T1 、T2WI整个信号强度与CSF相似、增强为环状强化13个肿瘤,病理为囊性肿瘤;T1、T2 信号强度不均匀、增强呈环状和肿块状强化21个肿瘤,病理为囊、实性肿瘤。结论:椎管神经鞘瘤的MR表现分为3型能客观地反映其病理特征,更有助于与很少囊变、多数表现为与脊髓呈等信号的脊膜瘤鉴别
Objective: To study the MR manifestations and classification of schwannoma of the spinal canal. Methods: MRI findings and pathological changes of schwannoma of the spinal canal in 60 cases (66 tumors) were compared. Results: T1WI was equal or slightly lower signal, T2 signal was higher than the spinal cord, enhanced to uniformly strengthen the 31 tumors, the pathology confirmed as a solid tumor; T1, T2WI signal intensity similar to the CSF, enhanced ring enhanced 13 tumors, Pathological cystic tumor; T1, T2 signal intensity uneven, enhanced ring and tumor-like enhancement of 21 tumors, the pathological cysts, solid tumors. Conclusion: MR manifestations of spinal schwannoma divided into three types can objectively reflect the pathological features, but also help with little cystic change, most of the performance of the spinal cord was equal signal identification of meningioma