120例脑转移瘤的CT诊断  

CT Diagnosis of Brain Metastasis in 120 Cases

作　　者：杨州[1,2,3] 周建忠[1,2,3] 刘兰培 周玉娥[1,2,3] 

机构地区：[1]山西医科大学第一医院CT室 [2]山西闻喜541总厂医院CT室 [3]山西省人民医院CT室

出　　处：《实用放射学杂志》1999年第2期84-87,共4页Journal of Practical Radiology

摘　　要：目的：研究脑转移瘤的ＣＴ诊断特征及规律。方法：本组１２０例，男８０例，女４０例。８１例行ＣＴ平扫及增强扫描，３９例直接增强扫描。结果：幕上脑转移瘤８８例，小脑３１例，脑干１例。形态表现多样。多发脑转移瘤６９例，单发５１例，瘤周水肿大多明显，Ⅱ～Ⅲ度水肿占５２．７％；脑转移瘤多明显强化，囊变坏死区不强化。结论：１．脑转移瘤幕上多见，大多位于灰白质交界区；２．多发脑转移瘤具有“多形性”ＣＴ表现特征。３．多为结节状稍高密度影，伴有坏死囊变区，瘤实质部分多明显强化。４．瘤周水肿显著，且具有肿瘤与水肿程度不成比例的特性。Objective:To study CT diagnostic features and regularities of brain metastasis.Methods:There were 120 patients with brain metastases(80 men and 40 women) contrast enhanced scans initially in 39 patients and plain scans and contrast enhanced scans in 81 cases were performed.Results:88 cases were in cerebral hemisphere,31 cerebellar metastases,1 brainstem lesion.69 cases were multiple lesions,51 cases were single metastasis The Ⅱ-Ⅲ degree edema around the metastases were 52.7%.Most cerebral metastases were circular or nodular(73.33%)with obvious enhancement in parenchyma portions.Conclusion:The CT findings in multiple metastatic lesions are 'polymorphy',while in single brain metastasis,the CT features are as follow:(1)The lesion are common seen at the junction of the cortex and medulla;(2)Most of metastases are nodular,high density with obvious enhancement and edema around metastases.

关 键 词：脑转移瘤 肿瘤转移 诊断 CT 

分 类 号：R73-37[医药卫生—肿瘤] R739.410.4[医药卫生—临床医学]