Objective: To evaluate MRI diagnosis value of subdural extramedullary tumors.
目的：评价MRI对髓外硬膜下肿瘤的诊断价值。
There were 9 cases of subdural extramedullary tumors, 6 of epidural tumors and 8 of dumbbell tumors.
其中髓外硬膜下肿瘤9例，髓外硬膜外肿瘤6例，哑铃形肿瘤8例。
Objective: to evaluate the MR signs of primary subdural extramedullary tumors so as to improve the level of diagnosis and differential diagnosis.
目的：分析评价髓外硬膜下肿瘤的MRI表现及影像学特征，提高诊断与鉴别诊断水平。
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