儿童脑肿瘤80例CT表现与病理学对照研究

Controlled study between CT findings and pathology in 80 cases with brain neoplasm in children

目的 :分析儿童脑肿瘤的CT特点 ,提高其诊断水平。方法 :回顾分析经手术病理证实的80例儿童脑肿瘤的CT表现 ,并与病理结果进行对照研究。结果 :80例儿童脑肿瘤中 ,25例 (31.25 % )位于脑干 ,22例 (27.5 % )位于鞍内及鞍上区 ,16例 (20 % )发生在小脑 ,幕上半球8例 (10 % ) ,侧脑室3例 ,间脑3例 ,第四脑室2例 ,枕大池1例。大多数肿瘤CT表现为低密度、等密度或混杂密度 ,增强扫描均匀强化或强化不均匀。结论 :胶质瘤是儿童期脑肿瘤中最常见的肿瘤 ,脑干是其最常发生部位 ,其次是颅咽管瘤 ,常发生于鞍内及鞍上区。进行儿童脑肿瘤的CT表现与病理对照研究 ,有助于临床诊断及鉴别诊断。

Objective:To analyse CT characteristics of brain tumor in children,so as to improve the diagnostic level.Methods:CT fingings in 80 sick children with brain tumor confirmed by surgical operation were analysed retrospectively,and compared with the pathologic results.Results:Of 80 children with brain tumor,25 cases(31.25%) were situated in brain stem,22 cases(27.5%) in saddle and upper saddle,16 cases(20%) in cerebellum,8 cases(10%) in supratentorial hemisphere,3 cases in lateral ventricle,3 cases in diencephalon,2 cases in the 4th ventricle,1 case in occiptal cistern,Most CTs of tumor showed low density,equal density or confused density.They might display homogeneous or heterogeneous enhancement at magnetic resonance images.Conclusion:Glioma is the most common nervous system tumor in children and brain stem is the most common place.Next one is craniopharyngioma,which is most found in saddle or upper saddle.This study between CT and pathology in children with cerebral tumor is helpful to clinical diagnosis and differential diagnosis.