引起猝死的第一大原因是心血管系统的疾病 ,其次是脑血管畸形。脑血管畸形破裂引起蛛网膜下腔出血 (ＳＡＨ)是导致猝死的主要机制。先天性血管畸形导致死亡的原因常见于蛛网膜下腔出血或脑室积血 ,或血凝块压迫延髓而死亡。充分了解脑血管畸形的病理学特征及分布规律 ,抓住鉴定 The first major cause of sudden death is cardiovascular disease, followed by cerebrovascular malformations. Cerebral vascular malformation rupture caused by subarachnoid hemorrhage (SAH) is the main mechanism leading to sudden death. Causes of congenital vascular malformations common cause of death in subarachnoid hemorrhage or ventricular hemorrhage, or blood clots oppression medulla oblongata. Fully understand the pathological features of cerebral vascular malformations and distribution, seize the identification