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时间:2020-06-03
《垂体脓肿MRI诊断.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、神经影像学218NEUROLOGICALIMAGING垂体脓肿MRI诊断张斌韩芳钱银锋张家文冯晓源【摘要】目的:分析垂体脓肿的MR/表现及其特征,探讨MRI表现在诊断中的价值。方法:回顾性分析经手术后、病理或者临床随访证实的垂体脓肿1O例,对垂体脓肿的MR/表现进行分析,结合文献讨论垂体脓肿DwI表现。结果:所有1O例均见垂体高度增加,病灶均位于鞍内或向鞍上生长;TIWI呈高信号1例;等高混杂信号3例,高低混杂信号2例,等低混杂信号4例;T2WI呈高信号5例,等高混杂信号3例,2例未行T2WI序
2、列扫描。增强后病灶薄壁环状强化6例,厚壁环形强化4例,其中1例厚壁环形强化伴有分隔强化;伴有视交叉受压5例;伴软脑膜强化3例。2例行DWI序列扫描,显示为明显高信号。结论:垂体脓肿MR表现具有一定特征性,DWI序列可能对垂体脓肿术前诊断和鉴别诊断具有重要意义。【关键词】垂体脓肿;磁共振成像;弥散加权成像中图分类号:R445.2文献标志码:A文章编号:1006—5741(2014).03.0218.04MRIFindingsofPituitaryAbscessZHANGBin,HANFan。,QI
3、ANYin~feng。,ZHANGJia~Well。,FENGXiao—yuan。【Abstract】Purpose:ToanalyzetheMRIfeaturesofpituitaryabscess,andtoinvestigatethevalueofMRIvalueforthediagnosisofpituitaryabscess.Methods:Aretrospectiveanalysisof10casespituitaryabscess,whichwereconfirmedbysurge
4、ry,pathologyorclinicalfollow—upwasperformed.MRIfindingsofpituitaryabscesswereinvestigatedincombinationwiththereviewofliteratures.ReSUIts:Increaseofpituitaryheightwasshowninall10cases,andthelesionswerelocatedinthesellarorextendingtothesuprasellarregio
5、n.Thesignalofthelesionswerehyper.intensityinonecase,iso·orhyper_intensityin3cases,mixedhyper-andhypo-intensityin2cases,iso—orhypo—intensityin4casesonT1WI;hyper-intensityin5case.iso-orhyper—intensityin3casesonT2WI.Post·gadoliniumT1WIshowedthatthinwall
6、ring-likeenhancementin6cases,thickwallring-likeenhancementin4cases.Opticchiasmwascompressedin5cases.Leptomeningealenhancementwasdetectedin3cases.DW1wasperformedin2casesandthelesionsappearedremarkablehyper·intensity.Conclusion:MRappearanceofpituitarya
7、bscesshascertaincharacteristics.DWIsequencemaybevaluableforthepreoperativediagnosisanddifferentialdiagnosisofpituitaryabscess.【Keywords】Pituitaryabscess,Magneticresonanceimaging,Diffusionweightedimaging垂体脓肿非常少见,1914年由simods首先报”,垂2007-2012年经手术后、病理和临床随
8、访证实的l0例垂体体脓肿的MRI表现国、内外报道不多,由于其临床症状无脓肿,分析总结其M砌表现,并结合文献讨论垂体脓肿的特异性,因此,术前难以正确诊断,本文通过回顾性分析DwE获现,以便提高对该病的诊断7hq,z~n认识。中国医学计算机成像杂志,2014,20:218.221ChinComputMedImag,2014,20:218—221作者单位:1安徽省六安市中医院磁共振室1DepartmentofRadiology,LuanHospitalofTraditionalChineseMedic
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