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目的探讨腰椎管内神经鞘瘤的MRI表现。方法回顾性分析经手术病理证实的14例腰椎管内神经鞘瘤的MRI影像资料。结果腰椎管内神经鞘瘤呈卵圆形和哑铃状,T1加权为等或稍低信号,T2加权为高或稍高信号,内部可见囊变,增强扫描明显均匀强化或环状强化,病灶可延椎间孔向椎管外生长。结论 MRI可对肿瘤准确定位,通过各种MR征象分析,对肿瘤定性有很高的价值。
Objective To investigate the MRI manifestations of schwannoma in lumbar spinal canal. Methods The MRI data of 14 schwannomas in the lumbar spinal canal confirmed by surgery and pathology were retrospectively analyzed. Results The schwannoma of the lumbar canal was oval and dumbbell-shaped. T1 weighted to equal or slightly lower signal, T2 weighted to high or slightly higher signal, internal cystic change, enhanced scan significantly enhanced or annular enhancement, lesions can be delayed Foraminal to the spinal canal growth. Conclusion MRI can accurately locate the tumor, through a variety of MR signs of analysis, the tumor has a high value of qualitative.