脑叶出血又称皮质下自质出血。自CT应用以来,发现其发病数并非少见,占脑出血的15～34%。仅次于壳核外囊出血,同时还发现青壮年发病率较高,因此逐渐受到重视。其发病原因,老年人多由高血压动脉硬化引起,部分伴类淀粉样血管病;壮年多由动静脉畸形引起。有人发现30%以上的病例有高血压,30%左右可找到动静脉畸形、肿瘤、血液病变,30%左右找 Lobe bleeding, also known as subcutaneous cortical bleeding. Since the CT application, found that the incidence is not uncommon, accounting for 15 to 34% of cerebral hemorrhage. After the outer shell capsule hemorrhage, but also found that the incidence of young adults is higher, so gradually attention. The cause of the disease, the elderly mostly caused by atherosclerosis of hypertension, some associated with amyloid angiopathy; mostly caused by arteriovenous malformations. It was found that more than 30% of cases have high blood pressure, 30% can be found arteriovenous malformations, tumors, blood diseases, about 30% find