Objective:To study the etiological factors, clinical manifestations, imaging findings, diagnosis and prognosis of top of basilar syndrome ( TOBS) . Methods:The clinical firsthand data of 36 cases were retrospectively analyzed. Results:The major etiol-ogy was cerebral embolism. The clinical symptoms were varied. MRI was superior to CT in diagnosing early lesions with TOBS. Con-clusions:TOBS has the worse prognosis, high fatality and disability. It is a special type of cerebrovascular disease. Early comprehen-sive treatment may improve the survival rate.%目的：：探讨基底动脉尖综合征的病因、临床特征、影像学改变及治疗预后。方法：对36例患者的病例资料进行回顾性分析。结果：临床表现多种多样，脑栓塞是其主要病因，早期诊断MRI优于CT。结论：基底动脉尖综合症是一种特殊类型的脑血管疾病。该病预后差，病死率高，致残率高，早期全面综合治疗可提高生存率。
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