【摘要】 目的　分析灰质异位症的CT表现和分型。方法　回顾性分析 2 6例灰质异位症患儿的临床及CT资料 ,其中男 11例 ,女15例 ,年龄 2d～ 9岁 ,平均 2 .6岁。结果　 (1)室管膜下型 14例。合并脑膜膨出 5例 ,Dandy -Walker畸形 1例 ,枕大池蛛网膜囊肿1例。 (2 )皮质下型 7例 ,4例合并胼胝体发育不全。 (3 )带状型 5例。结论　CT不仅能显示室管膜下型、皮质下型、带状型灰质异位的形态学表现 ,而且能够发现各种合并畸形更多还原

【Abstract】 Objective To analyze the CT appearances and the classification of gray matter heterotopia.Methods The clinical and CT data of 26 cases with gray matter heterotopia were retrospectively reviewed,11 were males and 15 were females,ranged in age from 2 days to 9 years with a mean of 2.6 years.Results The classification of heterotopia included:(1)Subependymal heterotopia in 14,5 cases with encephaloceles,1 case with Dandy-Walker malformation and 1 case with arachnoid cyst of cisterna megna.(2)Subcortical heterotopia in 7,4 cases with callosal agenesis were accompanied.(3)Band heterotopia in 5.Conclusion CT scan can not only reveal the appearances of the subependymal,subcortical and band types heterotopia,but also show other associated abnormalities.更多还原