原发性脑内淋巴瘤的MRI诊断(附10例报告)  

MRI DIAGNOSIS OF PRIMARY INTRACRANIAL LYMPHOMA:REPORT OF 10 CASES

作　　者：刘佳宝[1] 张传玉[1] 于华龙[1] 段峰[1] 刘世合[1] 

机构地区：[1]青岛大学附属医院放射科,山东青岛266003

出　　处：《齐鲁医学杂志》2015年第1期29-31,33,共4页Medical Journal of Qilu

摘　　要：目的探讨原发性脑内淋巴瘤的MRI特征,以提高诊断的正确性。方法回顾分析10例经手术病理证实的原发性脑内淋巴瘤病人的MRI资料。结果本组10例病人淋巴瘤单发6例,多发4例。单发者部位包括小脑蚓部、小脑半球、丘脑、颞枕叶交界处。共15个病灶,多数位于脑组织深部。T1WI呈等信号4例,稍低信号6例;T2WI呈稍高信号6例,等信号4例;增强后均呈明显强化。15个病灶瘤周水肿为轻度4个,中度7个,重度4个。结论原发性脑内淋巴瘤MRI表现有一定的特征性,对临床诊断有重要帮助。Objective To explore the MRI features of primary intracranial lymphoma （PIL） and improve the accuracy of diagnosis. Methods MRI data of 10 patients with PIL confirmed by surgery and pathology were retrospectively reviewed. Results Of the 10 patients, single lesion was found in six patients, multiple was noted in four. The locations of single lesion included cerebellar hemisphere, vermiform process of cerebellum, thalamus and the juncture of temporal lobe and occipital lobe. There were 15 lesions in 10 patients, mostly located deep in the brain. The lesions demonstrated isointensity signal in four cases, or slighfly hypointensity signal in six on T1WI, and slightly hyperintensity signals in six cases or isointensity signal in four on T2 WI. After GdDTPA injection, the lesions obviously enhanced. Slight para-tumor edema was found in four lesions, moderate edema in seven and marked edema in four. Conclusion There are unvarying MRI characteristics of primary intracranial lymphoma, those features are helpful to clinical diagnosis of this condition.

关 键 词：脑肿瘤 淋巴瘤 磁共振成像 

分 类 号：R814.46[医药卫生—影像医学与核医学]