摘要
目的分析原发性脑内恶性淋巴瘤的MRI表现。方法回顾分析17例原发性脑内恶性淋巴瘤的MRI影像学特征。结果17例患者中幕上15例,幕下2例;单发15例,2例多发,共24个病灶。MRI表现为稍长T1、等或稍长T2信号,轻到中度水肿,占位效应相对较轻。10例单发者呈团块状,4不规则斑片状明显强化,2例多发者呈环状强化。结论原发性脑内淋巴瘤MRI在发病部位、水肿形式、强化方式等方面有一定特征。
Objective To analyze MRI features of primary malignant lymphomas in the brain. Methods MRI of 17 patients with pathologically proved primary malignant lymphomas in the brain were retrospectively analyzed. Results The lesions were solitary in 15 cases and multiple in 2 case,and a total of 24 lesions were presented.15 cases located in supratentorial and 2 cases in infralentorial region.On MR scanning,the lesions display iso to hypointense signal on T1-weighted and slightly hyperintense or hypointense on T2-weghted imaging.Mild to moderate peritumoral edema and mild space-occupying effect were seen in all 17 cases.10 cases were with glaebule shape,4 with irregular patching and 2 cases with rim enhancement after contrast injection. Conclusion MRI of primary malignant lymphomas have some characteristics in location,the pattern of edema and enhancement.
出处
《南华大学学报（医学版）》
2008年第5期596-597,共2页
Journal of Nanhua University(Medical Edition)
