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Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue in the brain parenchyma:a case report
Author(s): 
Pages: 239-240
Year: Issue:  3
Journal: Chinese Journal of Oncology

Keyword:  Central nervous system tumorBrain ParenchymaLymphoma of mucosa-associated lymphoid tissue;
Abstract: 患者女,60岁. 因头痛伴左侧视力下降10余天入院.患者10余天前无明显诱因出现左侧枕部胀痛,同期出现左眼视物不清. 入院后查头颅MRI示,左侧脑室后角内可见结节样稍长T1、T2异常信号,FLAIR序列呈稍高信号,增强扫描明显均匀强化,病灶周围见条片状长T2异常信号. 以胶质瘤收入院. 患者既往史无特殊. 入院后行左侧后枕部开颅肿瘤切除术. 术中见肿瘤呈灰红色,质地韧,血供丰富,与周围脑组织粘连紧密. 肿瘤全切,术后病理报告为黏膜相关淋巴组织结外边缘区淋巴瘤. HE染色显示,弥漫浸润的小淋巴细胞(图 1 ). 免疫组化染色结果显示, Bcl-2 阳性(图2),CD20阳性,LCA 阳性,Vimentin 阳性(图3),CD79a阳性,Ki-67阳性率30%. 术后分子病理检查报告,IGH基因重排(图 4 ):VH-FR1-JH (-)、VH-FR2-JH (+)、VH-FR3-JH (-)、DH-JH(-)、DH7-JH(-). IGK基因重排(图5):VK-JK (+)、VK-intron-k de(-). 免疫球蛋白IGH、IGK链发现基因重排单克隆,分子病理结果显示,B细胞基因重排. 术后患者恢复良好出院,未行放疗和化疗. 3个月后复查CT提示,术区未见明显肿瘤复发,现密切随访中.
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