脑原发性恶性淋巴瘤的影像学诊断(附22例报告)

The Imaging Diagnosis of the Primary Malignant Lymphoma of the Brain(An Analysis 0f 22 cases)

目的报告22例经手术及病理证实的脑内原发性恶性淋巴瘤的影像学表现。方法本组共22例,男14例,女8例。术前3例仅行CT、10例仅行MRI检查,8例均行CT、MRI检查,所有病例均进行平扫和增强检查。结果本组22例其影像学表现病灶主要位于脑组织深部,边界清楚,大小不等,团块状、圆形或卵圆形,周围无或有轻到中度水肿,CT为略高密度,在T1加权像为略低信号,T2加权像为略高信号,增强后扫描有明显增强。结论影像学检查对脑内原发性恶性淋巴瘤的诊断具有一定的价值。

Objective To display the imaging performance of the primary malignant lymphoma of the brain. Methods A group of 22 cases（14 males and 8 females）, and 3 cases were only performed by CT examination be- fore operation,10 cases were only performed by MRI examination, 8 cases were performed by CT and MRI examination, all cases were performed by plain and enhanced. Results There were some distinctive imaging appearances in the examination.The lesions usually involve the deep structures of the brain and have distinct borders,different size,round or oval in shape,without or slightly - medium edema around the tumor, slightly higher attenuation in CT image,hypo-intensity on T1WI and hyper-intensity on T2WI,and marked enhanced. Conclusion The Imaging examination such as CT and MR/is helpful in the diagnosis of the primary malignant lymphoma of the brain.