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目的:分析儿童胼胝体发育不全的临床与CT特点,探讨其临床表现与CT特征的相关性。方法:回顾性分析47例儿童胼胝体发育不全的临床和头颅CT表现。结果:胼胝体完全性发育不全31例,部分性发育不全16例。胼胝体发育不全在CT上的主要表现有:前纵裂过深,紧贴或明显靠近第三脑室前部,前纵裂不规则增宽;侧脑室变形、分离;脉络丛夹角变小;室间孔不同程度扩大、分离;第三脑室扩大并上移至侧脑室之间;伴发其它颅内发育异常,如胼胝体脂肪瘤、纵裂蛛网膜囊肿、灰质异位。临床上主要有:发育迟缓,癫痫,运动障碍,智力低下。胼胝体完全性发育不全者临床表现较部分性发育不全者重,伴发颅内发育异常者较单纯性胼胝体发育不全者重。结论:CT扫描能正确诊断儿童胼胝体发育不全,CT表现类型及合并颅内发育异常与临床表现有一定联系。
Objective: To analyze the clinical features and CT features of the corpus callosum in children and to explore the correlation between clinical features and CT features. Methods: The clinical and CT manifestations of 47 cases of hypoplastic corpus callosum were retrospectively analyzed. Results: There were 31 cases of complete hypoplasia of the corpus callosum and 16 cases of partial hypoplasia. The main manifestations of corpus callosum hypoplasia on CT are: the anterior longitudinal splitting is too deep, close to or obviously close to the anterior third ventricle, the anterior longitudinal splint irregularly widened; lateral ventricle deformity, separation; the angle between the choroid plexus becomes smaller; Between the hole to varying degrees of expansion, separation; third ventricle enlarged and moved to the lateral ventricle; associated with other intracranial dysplasia, such as corpus callosum lipoma, longitudinal cracked arachnoid cysts, gray matter ectopic. Clinically there are: developmental delay, epilepsy, dyskinesia, mental retardation. The clinical manifestations of complete hypoplastic corpus callosum than those with partial hypoplasia, associated with intracranial dysplasia than simple corpus callosum hypoplasia. Conclusion: CT scan can diagnose the corpus callosum hypoplasia, CT manifestations and intracranial dysplasia in children with clinical manifestations.