巨脑回畸形及伴发病变的CT诊断价值

The value of CT in pachygyria and associated abnormalities

目的探讨巨脑回畸形及伴发病变的CT诊断价值。方法回顾性分析11例巨脑回畸形的CT资料。其中男7例,女4例,年龄5个月3.5岁,其中1岁以下8例。结果CT表现为脑回宽大、平坦,脑皮质增厚,皮质内表面光滑,脑白质变薄。广泛型9例,局限型2例(1例位于右侧顶叶、1例位于左侧额叶)。8例伴胼胝体发育异常,3例伴有脑裂畸形,1例伴TORCH感染并发交通性脑积水,仅1例未见明确伴发畸形。结论CT能很好地显示巨脑回畸形及伴发病变。

Objective To discuss the value of CT in pachygyria and it＇ s associated abnormalities. Methods CT findings of 11 cases with pachygyria were analyzed retrospectively. There were 7 males and 4 females. The age ranged from 5 months to 3. 5 years, 8 cases were under the age of one year. Results The characteristic CT findings of pachygyria were as follow： enlarged cerebral gyrus, with thick cortex, but the surface of cortex was smooth,cerebral medulla became thin. There were general pachygyria in 9 cases and local pachygyria in 2 cases. Accompanying abnormalities were found in 10 cases, include dysplasia of corpus callosum（8 cases）, schizencephaly（3 cases）, TORCH and communicating hydrocephalus（1 cases）. Conclusion CT can clearly show pachygyria and associated abnormalities.