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目的：对自发性脊髓硬膜外血肿（ＳＳＥＨ）的ＭＲ和临床表现进行评价。材料与方法：本组包括１９９６年至１９９８年的３例ＳＳＥＨ患者，男３例，女１例，年龄３３～６１岁。４例患者均无外伤、血管损伤或凝血机制障碍等病史。均作ＭＲＩ检查并有手术病理证实。结果：在ＭＲ图像上，血肿分别位于硬膜外腔的左后、右后及正后方。其中１例为ＡＶＭ导致的有包膜的血肿，另１例的局部有椎间盘突出。Ｔ１加权能特征性地反映血肿随时间发生的信号变化而最有价值；１．５Ｔ高场强和轴位梯度回波的Ｔ２加权能很好地判断血肿的位置。结论：自发性脊髓硬膜外血肿是一少见病，ＭＲＩ是它的首选检查方法。应当注意的是，要获得理想的临床疗效，就必须做到诊断精确，并及时地手术治疗，解除脊髓压迫。
Objective: To evaluate the MR and clinical features of spontaneous spinal epidural hematoma (SSEH). Materials and Methods: The group consisted of 3 SSEH patients from 1996 to 1998, including 3 males and 1 females, aged 33-61 years. All 4 patients had no history of trauma, vascular injury or coagulation disorders. All were MRI examination and surgical pathology confirmed. Results: In the MR images, the hematoma were located in the left posterior and posterior right and posterior in the epidural space respectively. One of them had an enveloped hematoma caused by AVM, and the other had a local disc herniation. The T1 weighted value can most characteristicly reflect the signal changes of the hematoma over time. The T2 weighted of 1.5T high field intensity and axial gradient echo can well determine the position of the hematoma. Conclusion: Spontaneous spinal epidural hematoma is a rare disease, MRI is its preferred method of examination. It should be noted that, in order to obtain the desired clinical effect, it must be accurate diagnosis, and timely surgical treatment to relieve spinal cord compression.