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MTX相关性原发中枢神经系统淋巴瘤1例并文献复习 被引量:1

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摘要 目的探讨MTX相关淋巴增殖性疾病(methotrexateassociated lymphoproliferative disorders,MALD)的临床病理特征、鉴别诊断及预后。方法回顾性分析1例MTX相关原发中枢神经系统淋巴瘤(primary central nervous lymphomas,PCNSL)的临床病理资料并复习相关文献。结果患者男性,61岁。因行走不稳伴右下肢乏力半个月入院,银屑病7~8年,每天口服MTX 0.25 mg。头颅MR示左侧扣带回及胼胝体体部占位性病变。脑肿物病理结果:非霍奇金淋巴瘤,B细胞性;弥漫大B细胞淋巴瘤(非生发中心型)免疫亚型;老年性EBV^+弥漫大B细胞淋巴瘤。EBER检测阳性。免疫表型:CD20、CD79a、CD30、BCL-2、CD43均弥漫强阳性,MUM1(70%阳性),Ki-67(90%阳性),BCL-6(<10%阳性)。CD3、CD5、CD10、CD15、EMA、CD4、CD2、ALK、CD138、TDT、Cyclin D1、CD56、TIA-1、c-myc均阴性。BCR毛细管电泳法显示:Ig H基因可见克隆性重排;Ig K、Ig L基因未见克隆性重排。BCL-2/Ig H、BCL-6 BA、c-myc BA荧光原位杂交结果均阴性。结论 MALD临床少见,极易误诊。熟悉其临床病理表现及免疫表型特征,结合临床病史,有助于正确诊断。
出处 《临床与实验病理学杂志》 CAS CSCD 北大核心 2018年第1期83-85,共3页 Chinese Journal of Clinical and Experimental Pathology
基金 国家自然科学基金(81172244) 国家临床重点专科建设项目 广东省医学科学技术研究基金(A2016284)
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