中枢神经系统原发性淋巴瘤的影像学诊断  

Imaging Diagnosis of Primary Lymphoma in Central Nervous System

作　　者：王晶[1] 徐刚[1] 李钢[1] 

机构地区：[1]吉林省四平市中心医院影像中心,136000

出　　处：《中国全科医学》2010年第33期3796-3798,共3页Chinese General Practice

摘　　要：目的总结中枢神经系统原发性淋巴瘤的CT及MRI表现,提高诊断率。方法选取6例经手术及病理证实的中枢神经系统原发性淋巴瘤患者,其中男2例,女4例。术前2例行CT横断扫描,5例行MRI扫描,其中1例CT平扫加增强扫描,1例CT平扫及MRI平扫加增强扫描,2例MRI平扫加增强扫描,2例MRI单纯平扫。总结此病的CT及MRI影像学表现。结果 6例患者中5例为单发病灶,1例为多发病灶,共7个病灶。患者的CT及MRI表现具有一定的特性:6个病灶位于近中线大脑深部,边界一般较清楚,CT检查呈略高密度,MRI检查显示T1WI呈等或稍低信号,T2WI呈等或稍高信号,注射造影剂后显著均匀强化,其中1例呈斑片状强化。结论 CT及MRI检查可作为中枢神经系统原发性淋巴瘤的首选检查。Objective To raise diagnostic accuracy of primary lymphoma in central nervous system by summarizing CT and MRI performance.Methods 6 patients with primary lymphoma in central nervous system confirmed by surgery and pathology were selected,among which 2 cases were male and 4 cases were female.2 cases were carried out CT scan and 5 cases MRI scan before operation.Of the 2 CT scanned cases,1 case performed plain scan and enhanced CT scan,the other case performed CT plain scan and enhanced MRI scan.Of the MRI scanned cases,2 cases performed plain MRI scan and enhanced MRI scan,and 2 cases performed single plain MRI scan.Performances of CT and MRI were then summarized.Results There were 7 lesions in 6 cases,among which 5 cases were single lesion,1 case was multiple lesions.CT and MRI had certain characteristics： 6 lesions were found deep in the brain near the center line,and the borders were generally clear,which showed a slightly higher density in CT.In MRI T1WI showed equal or slightly lower signal,and T2WI showed equal or slightly higher signal.They were both enhanced significantly after injection of contrast medium,of which 1 case was patchy enhanced.Conclusion CT and MRI can be used as primary choice for examination of lymphoma in central nervous system.

关 键 词：淋巴瘤 中枢神经系统 体层摄影术 螺旋计算机 磁共振成像 

分 类 号：R733.41[医药卫生—肿瘤]