脑裂畸形是一种颅脑先天性畸形，为脑神经元移行异常的一种类型。一般认为这是一种罕见畸形。其特点为大脑半球出现组织缺损形成的裂隙。依裂隙的形态，有作者将这种畸形分为融合型（Ⅰ型）和分离型（Ⅱ型）。此畸形很难做出临床诊断。ＣＴ及ＭＲ应用于临床后，文献上报告... Sick split is a congenital craniocerebral deformity, a type of abnormalities in brain neurons migration. It is generally considered a rare deformity. It is characterized by the presence of tissue defects in the cerebral hemispheres. According to the morphology of the fissure, some authors have classified this deformity into fusion type (type I) and separation type (type II). This deformity is difficult to make a clinical diagnosis. CT and MR used in clinical, literature reports ...