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目的分析放射性脊髓空洞症发生机制及误诊原因。方法对放射性脊髓空洞症误诊病例进行分析,重点描述临床特征及MR影像学变化。结果放射性脊髓空洞症患者具有明确的放射治疗史;出现节段型分离性感觉障碍;MR见空洞位于放疗照射野内,脊髓中央扩张,T1W和T2W图像信号与脑脊液一致,并可见射野内椎体由红骨髓变为黄骨髓的明显分界线。结论初步确立放射性脊髓空洞症诊断方法,减少误诊率,提高诊断水平。
Objective To analyze the mechanism and misdiagnosis of radiation syringomyelia. Methods The cases of misdiagnosis of radiation syringomyelia were analyzed, and the clinical features and MR imaging changes were mainly described. Results Radiation syringomyelia patients had a definite history of radiotherapy; segmental segmental sensory disturbance appeared; MR cavity was located in the radiation field, the central dilatation of the spinal cord, T1W and T2W image signal consistent with cerebrospinal fluid, and the visible vertebral body Red bone marrow into a clear boundary of the yellow bone marrow. Conclusion The method of radiological diagnosis of syringomyelia is initially established to reduce the rate of misdiagnosis and improve the diagnostic level.