胼胝体压部可复性局灶孤立性病变的MRI诊断价值-论文.pdf

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1、中国临床医学影像杂志2014年第25卷第7期JChinClinMedImaging，2014，Vo1．25，No．7·457·论著胼胝体压部可复性局灶孤立性病变的MRI诊断价值郑奎宏，马林，王亚明，黄敏华，王子军，邵立新，应立刚(1．海军总医院放射科，北京100048；2．解放军总医院放射科，北京100853)【摘要】目的：脑内胼胝体压部出现可复性局灶孤立性病变是一种少见的MRI表现，本研究的目的在于描述该病变的MRI特点并分析该病变的影像诊断价值。方法：回顾性分析3例MRI表现为胼胝体压部局灶孤立性病变患者的影像及临床资料．并复习相关文献。结果：1例流

2、感患者出现精神症状，MRI检查提示胼胝体压部出现孤立局灶性异常信号，临床确诊流感病毒相关性脑炎，经抗病毒治疗后患者完全康复，复查MRI病灶完全消失；1例癫痫患者服用抗癫痫药物多年，术前行MRI检查偶然发现胼胝体压部局灶孤立性异常信号，术后复查病灶明显缩小；1例精神异常患者行MRI检查发现脑内胼胝体压部出现局灶孤立性异常信号，随后的脊髓MRI检查发现髓内弥漫性异常信号，临床诊断急性播散性脑脊髓炎，1月后患者完全康复，复查MRI病变已完全消失。结论：胼胝体压部局灶孤立性异常信号无法用某一种疾病解释，多种疾病脑内均可以见到此类异常信号，MRI胼胝体压部局灶性异

3、常信号是一种非特异性表现。[关键词】脑炎；胼胝体；磁共振成像【中图分类号】R512．3；R445．2【文献标识码】A【文章编号】1008—1062(2014)07—0457—03NeuroimagingdiagnosticvalueofintraaxialreversiblefocalisolatedlesionsinthespleniumofthecorpuscallosumZHENGKui-honf,MALt，WANGYa-minf，HUANGMin—hu，WANGZi-jun1,SHA0Li-xinl,YINGLi一学cIn{1．Departmen

4、tofRadiology,NavyGeneralHospital，Beijing100048,China；2．DepartmentofRadiology,GeneralHospitalofPLA，Beijing100853，China)Abstract：Objective：Afocalisolatedlesioninthespleniumofthecorpuscallosum(SCC)isararefindinginMRI．TheaimofthepresentstudywastodescribeMRimagingfindingsoftheSCClesio

5、nandtoanalyzetherelationshipbetweenthislesionandpossibleetiologicfactors．Methods：ThreepatientswithSCClesiononMR1werereviewed．TheimagingfindingsonMR1wereanalyzed．Theclinicalrecordsandliteraturewerealsoreviewed．Results：Thefirstpatientwithinfluenzapre—sentedwithmentalsymptomshowedal

6、esioninthecentralportionofthesplenium．Afterreceivingantiviralmedication．hisneurologicaldeficitscompletelyrecovered，andthediagnosisofvirus—associatedencephalitiswasmade．Twoweekslater，thelesioncompletelydisappeared．ThesecondpatientwithepilepsypresentedwithsignalabnormalitiesintheSC

7、Cinthecontextofpresurgicalepilepsy．thepatienthadreceivedantiepilepticdrugsforyears．Oneweekafteroperationforepilepsy，MRex-aminationshowedaclearreductioninlesionsize．Thelastpatientpresentedwithabnormalneurologicalfindings．andMRIshowedanisolatedSCClesionanddiffuseabnormalintensityin

8、spinalcord．Thediagnosisofacutedisseminat