烟雾病的侧支血管,从血流负荷的角度考虑,会产生动脉瘤。在烟雾病中合并的末梢性动脉瘤也会因载瘤血管的血流负荷变化而自然消失。作者报道特发性大脑中动脉闭塞1例,患者以脑缺血发作发病,脑底部异常血管网小动脉瘤在短期内增大,经颞浅动脉-大脑中动脉吻合术后动脉瘤短期内消失。 Side-branch moyamoya disease, from the perspective of blood flow load, will produce aneurysms. In the moyamoya disease merger of peripheral aneurysms will also be due to changes in the load-bearing blood vessels and blood vessels naturally disappear. The authors report 1 case of idiopathic middle cerebral artery occlusion, patients with cerebral ischemic attack onset, abnormal brain vascular aneurysm in the bottom of the brain increased in the short term, shortly after the aneurysm disappeared in the superficial temporal artery - middle cerebral artery anastomosis .