脑穿通畸形的CT诊断(附42例报告)

CT diagnosis of porencephalic malformation

目的:笔者报道42例CT诊断的脑穿通畸形(包括先天性和继发性)着重讨论其发病机理,起因,CT特征和CT诊断价值。CT表现为大脑半球内与脑室或/和蛛网膜下腔相通的囊腔。此囊腔共有三种类型:(1)脑实质——脑室型;(2)脑实质——蛛网膜下腔型;(3)混合型,其密度与脑脊液相若,(?)者并就CT上脑穿通畸形与脑软化灶,局部脑萎缩,颅内囊性病变的鉴别诊断进行了分析。

The author reported 42 cases porencephalic malformation diagnosed by CT and discussed the reason of disease, CT charactritics and the value of CT diagnosis. The CT appearance of the porencephalic malformation was the cyst space, which in the cerebral was connected with ventricular system, or/and connected with subarachnoid spaces, The cyst space has three kinds: 1. cerebral-ventricular's kind: 2. Cerebral-subarachnoid space's kind: 3. fixed kind: It's density was the same as cerebrospinal fluid (C.S. F.). Also, the author has analysed the differention of the porencephalic malformation and cerebral softening, local atrophy and the cyst-disease in skull.