摘要
目的探讨原发性中枢神经系统淋巴瘤(PCNSL)患者的 CT 与 MRI 表现特点,提高对该疾病的认识和诊断水平。方法回顾性分析20例免疫功能正常,经病理证实为 PCNSL 患者的 CT 与MRI 资料,所有患者均行 MRI 平扫及增强扫描,其中2例同时行 CT 直接增强扫描,6例行 CT 平扫,1例行 CT 平扫并增强。结果病灶单发14例,多发6例,共38个病灶,大部分位于脑表面或近中线部位(血管入脑的部位);密度与信号特点类似脑膜瘤;增强后明显强化,边缘有"毛刺征"(36/38)。结论颅内原发淋巴瘤影像表现虽然多种多样,但其影像仍具有一定的特点,特别是 PCNSL 的发病部位、信号特征和增强后边缘的"短毛刺"较有特征。
Objective To evaluate the CT and MRI characteristics of Primary Central Nervous System Lymphoma(PCNSL)in immunocompetent patients,and enhance its diagnosis level.Methods CT and MRI data of 20 patients with PCNSL confirmed by histo-pathology were analyzed retrospectively.MRI scans were performed with and without Gadolinium contrast.Two of them had contrast-enhanced CT scan;six had CT scan without contrast administration;1 had CT scan with both non-contrast and contrast enhancement.Re- suits Totally,38 lesions were found in all patients:14 lesions of them were single and 24 lesions were found in 6 patients.Generally,the lesions were located in the surface and/or midline of the brain.The signal features and density were similar to meningioma,and strongly enhancing after contrast administration.Thirty-six of the 38 lesions had spicular sign peripheral to the lesion.Conclusion Although the manifestations of the PCNSL are variety,there are still many characteristics in the medical imaging,especially in the locations,the signal features,and spicular sign in the edge of the lesions after contrast material injection.
出处
《肿瘤研究与临床》
CAS
2007年第9期597-599,共3页
Cancer Research and Clinic
关键词
中枢神经系统肿瘤
淋巴瘤
体层摄影术
螺旋计算机
磁共振成像
Central nervous system neoplasms
Lymphoma
Tomography,spiral computer
Magnetic resonance imaging
