目的 总结脑内脱髓鞘假瘤(DTP) MRI主要征象及临床特征。方法 选取我院 于2014年10月-2016年10月收治的15例脑 内脱髓鞘假瘤患者作为研究对象，分析脑 内脱髓鞘假瘤的MRI影像特点。结果 采用 1.5T超导型MR扫描仪对患者头颅检查获取 MRI图像结果显示：15例患者病灶均累及 皮层下白质区，病灶主要位于额、顶、颞 叶、侧脑室周围、枕叶，病灶形态主要为 类圆形(直径大于2cm)。结论 多数脑内脱 髓鞘假瘤患者病灶部位与患者的临床表现 具有直接关系，脑内脱髓鞘假瘤常不累及 大脑皮层、没有癫痫症状，临床症状不同 于胶质瘤。

Objective To summarize the diagnostic value and clinical characteristics of intracerebral demyelinating pseudotumor(DTP). Methods The clinical data of 15 patients with intracerebral demyelinating pseudotumor from October 2014 to October 2016 were selected as the study subjects to analyze the MRI imaging characteristics. Results Using 1.5 T superconducting MR scanner to obtain MRI images, the lesions of 15 patients were all located in the subcortical leucorrhea region. The lesions were mainly located in the frontal, parietal, lateral ventricle and occipital lobe. Conclusion Most patients with demyelinating pseudotumor in the brain have direct relationship with the clinical manifestations of patients. Intracerebral demyelinating pseudotumors usually do not involve the cerebral cortex and have no epileptic symptoms. Their clinical symptoms are different from those of gliomas.