摘要
目的:探讨橄榄脑桥小脑萎缩(OPCA)的临床表现及MRI特征。方法:回顾性分析7例OPCA患者的临床表现及MRI征象。结果:7例患者均以脑干及小脑的损害为主,部分患者出现自主神经症状及锥体外系症状。MRI以小脑及脑干萎缩为主,大脑皮层轻度萎缩,3例在脑桥轴位T2WI序列可见"十字征",2例患者在脑干矢状位上可见"蜂鸟征"。结论:病人出现小脑性共济失调、自主神经功能紊乱及锥体外系症状时,应高度怀疑OPCA;MRI是诊断OPCA的最佳影像检查方法。
Objective：To explore the clinical manifestation and MRI imaging features of Olivopontocebellar atrophy.Methods：The clinical manifestation and MRI features of seven cases of OPCA were studied retrospectively.Results：The disorder of cerebellum and brain stem can be found in whole group of seven cases.MRI showed obvious atrophy in cerebellum and brain stem and weak atrophy in cerebral cortex.Cross sign was found in axial T2WI of pons in 3cases and Hummingbird sign was found in brain stem in 2cases.Conclusion：Patients with cerebellar ataxia,autonamic nerve disturbance and extrapyramidal symptoms may be have the possibility of OPCA.MRI is the best imaging examination for OPCA diagnosis.
出处
《中国伤残医学》
2011年第7期21-22,共2页
Chinese Journal of Trauma and Disability Medicine
