摘要
目的探讨免疫正常人原发性脑淋巴瘤的MR表现及其诊断价值。方法回顾性分析经手术病理证实的15例免疫正常人脑淋巴瘤的MR资料，患者均行常规MR平扫和增强检杳。结果15例患者共有18个病灶，14个在幕上，4个在幕下。7个病灶有明显的坏死囊变或出血．2例出现柔脑膜转移。在MR的T1WI、T2WI图像上15个病灶实质呈等信号，增强后所有病灶实质呈明最均匀强化，17个病灶表现轻中度占位效应。结论免疫正常人原发性脑淋巴瘤幕上多见．MR的T1WI、T2WI图像上肿瘤实质呈等信号，增强后明显均匀强化，有轻度中度占位效应，具有一定特征性．
Objective To study the magnetic resonance imaging （MR/） features of primary central nervous system lymphoma in immunocompetent patients and assess the value of MR/ in the diagnosis of the tumor. Methods Plain and enhanced MR/data of 15 immunocompetent patients with primary CNS lymphoma were analyzed retrospectively. Results A total of 18 lesions were detected in the 15 patients, including 14 （77.8%） supratentorial and 4 （22.2%） infratentorial ones. Seven lesions （38.9%） had obvious necrosis or hemorrhage, and leptomeninges metastasis was found in 2 patients. Fifteen lesions displayed isointensity on T2WI and T 1WI. All the lesions showed markedly homogeneous enhancement. Seventeen of the lesions presented with mild or moderate mass effect. Conclusion Primary CNS lymphomas in immunoeompetent patients are commonly seen in the supratentorial region. The MRI features of the lesions include isointensity mild or moderate mass effect.
出处
《中华神经医学杂志》
CAS
CSCD
北大核心
2009年第7期712-714,共3页
Chinese Journal of Neuromedicine
关键词
原发性脑淋巴瘤
免疫正常人
磁共振成像
Primary central nervous Magnetic resonance on T2WI and T 1WI, homogeneous enhancement, and system lymphoma
Immunocompeten patients
