46例大脑恶性胶质瘤的CT诊断分析

CT Diagnosis OF Brain Malignant Glioma

目的 探讨常见的恶性胶质瘤的CT征像 ,提高诊断水平。方法 回顾性分析 4 6例经手术及病理证实的大脑恶性胶质瘤的CT表现。结果 4 6例恶性胶质瘤中星形细胞瘤 39例 ,室管膜瘤 5例 ,少枝胶质细胞瘤 2例。成人多于儿童。平扫 38例 (82 6 % )是以低密度为主的混杂密度 ,增强后 19例 (5 0 % )呈环状强化。结论 结合CT表现与病人年龄、病变部位 ,全面分析 ,能提高大脑恶性胶质瘤的诊断准确率。

Objective To review and study the CT manifestations of the Brain malignant glioma and improve the diagnostic accuracy.Methods The CT manifestations of the Brain malignant glioma proved by operation and pathology were analyzed in 46 patients.Results 46 patients included 39 case with astrocytoma,5 cases with ependymoma,2 cases with oligodendroglioma.Adult′s morbidity was higher than child′s. 38 cases(82.6%) presented hypodense lesion on precontrast scan.19 cases(50%)had a ring-shaped enhancement lesion on postcontrast scan.Conclusion The correct diagnosis of brain malignant glioma could be established by comprehensive consideration of the CT appearance,the patient′s age and the location of tumor.