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目的:分析椎管内脊膜瘤及神经源性肿瘤MR增强影像的特征。方法:搜集经手术病理证实的椎管内脊膜瘤11 例,神经源性肿瘤12例,全部病例均行MR平扫及增强扫描。结果:椎管内脊膜瘤MR增强影像特征为“肿瘤周边重度环状增强”、脊膜“尾巴征”;神经鞘瘤MR增强影像特征为多灶样不增强;神经纤维瘤MR增强影像特征为病灶内星芒状不增强。结论:椎管内脊膜瘤及神经源性肿瘤都有各自的MR增强影像特征,其对定性诊断有重要价值
Objective: To analyze the characteristics of enhanced MR imaging of spinal meningiomas and neurogenic tumors. Methods: 11 cases of intraspinal meningoma confirmed by operation and pathology were collected, and 12 cases were neurogenic tumors. MR scanning and enhanced scanning were performed in all cases. RESULTS: MR enhanced images of intraspinal meningoma were characterized by “circular enhancement of the tumor around the periphery” and “tail sign” of the meninges; the features of MR enhanced images of schwannoma were not enhanced by multiple lesions; MR images of neurofibromas were enhanced. The stellate appearance in the lesion is not enhanced. Conclusion: The intraspinal meningioma and neurogenic tumors have their own MR enhanced imaging features, which have important value for qualitative diagnosis.