患者男性，45岁，因头晕、右侧肢体发麻3小时入外院治疗，腰穿提示“血性脑脊液”，拟珠网膜下腔出血。为进一步明确出血原因，来我院于1996年5月20日在局麻下行股动脉穿刺全脑血管造影，检查未发现明显异常，造影过程顺利。ZI日开始患者出现头晕，下午加剧，双眼视物模糊，心 Male patient, 45 years old, due to dizziness, right limb tingling 3 hours into the hospital treatment, lumbar puncture tips “bloody cerebrospinal fluid”, subepithelial hemiobulbarmia. To further clarify the cause of bleeding, to our hospital on May 20, 1996 under local anesthesia femoral artery puncture whole cerebral angiography, examination showed no significant abnormalities, the imaging process is smooth. ZI day began to appear in patients with dizziness, increased afternoon, eyes blurred vision, heart