目的探讨中脑周围非动脉瘤性蛛网膜下腔出血(PNSH)的临床及影像学特点、诊断和治疗的措施及预后。方法回顾性总结分析34例,出血部位仅限于中脑周围脑池的非动脉瘤性蛛网膜下腔出血的临床资料。结果中脑周围非动脉瘤性蛛网膜下腔出血再出血,明显的脑血管痉挛、脑积水等并发症较少,远期生活质量较高。结论正确认识中脑周围非动脉瘤性蛛网膜下腔出血可提高其临床诊治水平。 Objective To investigate the clinical and imaging characteristics of non-aneurysmal subarachnoid hemorrhage (PNSH) around the midbrain, diagnosis and treatment measures and prognosis. Methods The clinical data of 34 cases with non-aneurysmal subarachnoid hemorrhage limited to midbrain cerebral cisterns were retrospectively analyzed. Results There were fewer aneurysmal subarachnoid hemorrhage around the midbrain, fewer complications such as cerebral vasospasm and hydrocephalus and long-term quality of life. Conclusion Correct understanding of midbrain non-aneurysmal subarachnoid hemorrhage can improve its clinical diagnosis and treatment.