17例原发性脑内恶性淋巴瘤的MR表现特点  

MRI Features of Primary Malignant Lymphomas in the Brain

作　　者：魏新华[1] 江新青[1] 谢琦[1] 唐德秋[2] 罗光华[2] 刘进才[2] 梁志伟[1] 郑力强[1] 

机构地区：[1]广州医学院附属广州市第一人民医院放射科,广东广州510180 [2]南华大学第一附属医院放射科

出　　处：《南华大学学报（医学版）》2008年第5期596-597,共2页Journal of Nanhua University(Medical Edition)

摘　　要：目的分析原发性脑内恶性淋巴瘤的MRI表现。方法回顾分析17例原发性脑内恶性淋巴瘤的MRI影像学特征。结果17例患者中幕上15例,幕下2例;单发15例,2例多发,共24个病灶。MRI表现为稍长T1、等或稍长T2信号,轻到中度水肿,占位效应相对较轻。10例单发者呈团块状,4不规则斑片状明显强化,2例多发者呈环状强化。结论原发性脑内淋巴瘤MRI在发病部位、水肿形式、强化方式等方面有一定特征。Objective To analyze MRI features of primary malignant lymphomas in the brain. Methods MRI of 17 patients with pathologically proved primary malignant lymphomas in the brain were retrospectively analyzed. Results The lesions were solitary in 15 cases and multiple in 2 case,and a total of 24 lesions were presented.15 cases located in supratentorial and 2 cases in infralentorial region.On MR scanning,the lesions display iso to hypointense signal on T1-weighted and slightly hyperintense or hypointense on T2-weghted imaging.Mild to moderate peritumoral edema and mild space-occupying effect were seen in all 17 cases.10 cases were with glaebule shape,4 with irregular patching and 2 cases with rim enhancement after contrast injection. Conclusion MRI of primary malignant lymphomas have some characteristics in location,the pattern of edema and enhancement.

关 键 词：恶性淋巴瘤 脑肿瘤 磁共振成像 

分 类 号：R730.44[医药卫生—肿瘤]