颅内淋巴瘤的MRI诊断  

MRI Diagnosis of Intracranial Lymphoma

作　　者：徐庆云 

机构地区：[1]浙江省长兴县人民医院,浙江长兴313100

出　　处：《实用放射学杂志》2001年第5期375-377,共3页Journal of Practical Radiology

摘　　要：目的　分析颅内淋巴瘤的MRI表现。方法　回顾性分析 2 3例颅内淋巴瘤的MRI影像学表现 (其中 15例手术治疗 ,5例伽玛刀治疗 ,3例未手术治疗直接行放、化疗 )。男性 16例 ,女性 7例 ;年龄 9～ 6 3岁 ,平均年龄 36岁。 2 3例均行MRI平扫 ,2 0例行增强后扫描 (其中有 17例行CT平扫 )。结果　颅内淋巴瘤具有以下特点 :①病灶单发或多发 ,以幕上为主 ;②类圆形或不规则形 ,T1WI为低信号 ,T2 WI为等或高信号 ,信号均匀或不均匀 ;③瘤周水肿及占位效应多较轻 ;④增强扫描病灶均明显强化 ;⑤可侵犯室管膜和软脑膜并沿之播散 ;⑥对放、化疗敏感 ;⑦形态大小可变化。结论　颅内淋巴瘤MRI表现缺乏特异性 ,正确的分析及活检对明确诊断及指导选择治疗方案有决定意义。Objective To anlaysis the MRI features of intracranial lymphoma.Methods 23 cases of intracranial lymphoma imagings of MR and clinical datas were discussed,which were determined by pathology and surgery.Results The MRI features of intracranil lymphoma were ①Singal or multiple,more in supertentorium.②Round or irrigular in shape,hypointensity on T 1WI,isointensity or hyperintensity on T 2WI homogenously.③Edema around lesion with mass effect slightly.④Enhanced markedly.⑤Disseminated along pia mater and ependyma.⑥Sensitive to chemotherapy and radiotherapy.⑦Changeble in size and shape.Conclusion There is no characteristic feature of intracranial lymphoma,biopsy is useful to diagnosis and treatment.

关 键 词：颅内淋巴瘤 磁共振成像 MRI 穿刺活检 

分 类 号：R739.41[医药卫生—肿瘤] R445.2[医药卫生—临床医学]