摘要
目的:探讨原发性颅内淋巴瘤的MRI表现特征。方法:回顾分析12例原发颅内淋巴瘤的MRI表现,其中8例经手术证实,4例经穿刺活检证实。12例均行MRI平扫及增强扫描。结果:12例病变均位于幕上,T1WI呈低信号,T2WI呈等或高信号,信号均匀或不均匀。瘤周水肿多较明显。增强扫描肿块均明显强化,边缘光整或呈分叶状,坏死囊变区强化不明显或不强化。结论:颅内淋巴瘤的MRI表现有一定特征性,通过认真的影像分析,在术前作出正确诊断是可能的。
Objective:To study the MR findings of single intracranial primary malignant lymphoma.Methods:MR findings in 12 patients were retrospectively analyzed, 8 cases were proved by operation and pathology,and 4 cases were proved by aspiration biopsy.Conventional and enhanced MR scan were carried on in all cases.Results:All lymphoma were in supratentoriun, hypointensity on T1WI, isointensity or hyperintensity on T2WI homogeneously. There was an obvious edema around the tumonrs. All lesions with smooth or lobular edge were enhanced obviously. Necrosis of the lesion was not enhanced.Conclusion:It has Intracranial lymphoma has the characteristic features in MRI, and it is possible to diagnosis intracranial lymphoma before operation.
出处
《医学影像学杂志》
2005年第5期367-369,共3页
Journal of Medical Imaging
关键词
淋巴瘤
脑肿瘤
磁共振成像
Lymphoma
Brain neoplasms
Magnetic resonance imaging
