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1、MRI和CT診斷嗅神經(jīng)母細胞瘤的影像表現(xiàn)探討陳志剛雷明軍丁梓華陽煜劉小明湖南省株洲市攸縣人民醫(yī)院放射科湖南攸縣412300【摘要】目的:分析MRI和CT診斷嗅祌經(jīng)母細胞瘤的影像表現(xiàn)。方法:選取我院收治的11例嗅神經(jīng)母細胞瘤患者為木次研究對象,所有患者均經(jīng)過病理活檢組織確診。對檢查影像的病變累及部位、大小,侵入范圍,病變密度、信號強化程度等進行分析。結(jié)果:11例患者均有不同程度的骨質(zhì)被破壞影像,腫瘤密度不均勻,可以看見斑片狀低密度形態(tài),腫瘤形態(tài)均不規(guī)則。TIWI表現(xiàn)低于腦灰質(zhì)的低信號病灶,T2WI信號高于腦組織高信號。8例患者伴有囊變壞死,TIWI低信號不均勻,T2WI高信號不均勻
2、。7例進行增強檢查的患者中1例呈現(xiàn)強化均勻,其余強化不均勻較明顯。3例左側(cè)額葉受累,5例右側(cè)額葉受累。結(jié)論:臨床患者檢查出現(xiàn)鼻腔篩竇、頂部有腫塊出現(xiàn),并且有沿著嗅神經(jīng)呈現(xiàn)蔓延趨勢,強化顯示較為明顯等情況時,應(yīng)重點對患者檢查是否為嗅祌經(jīng)母細胞瘤。【關(guān)鍵詞】MRI檢查;CT檢查;嗅神經(jīng)母細胞瘤StudyontheMRIandCTimagesinthediagnosisofolfactorynervetumorCHENZhigang,LEIMingjun,DINGZihua,YANGYu,LIUXiaoming(Theradiologydepartment,YouxianPeople&
3、rsquo;sHospitalofZhuzhouCity,Hunan,412300,China)Abstract:Objective:TostudytheMRIandCTinthediagnosisofolfactorynervetumor.Methods:Weselected11casesofolfactorynervetumorpatientstreatedinourhospitalasthestudyobjects.Allpatientsafterpathologicalbiopsywerediagnosed.Theimageofthelesioninvolvingthel
4、ocation,size,scopeofintrusion,thelesiondegreeofdensity,signalenhancementisanalyzed.Results:11casesofpatientshaddifferentdegreesofbonedestructionofimages,tumorunevendensity,patchylowdensity,irregulartumorshape.TIWIperformancewaslowerthanthegraymatteroflowsignalintensity,highT2WIsignalwashigher
5、thanthebrainsignals.Eightpatientshadcysticnecrosis,unevenTIWIlowsignal,unevenhighT2WIsignal.1casein7patientswithenhancedinspectionappearedstrengthenuniform,andtherestofthereinforcementwasapparentlyuneven.3casesoftheleftfrontallobehaddysfunction,5casesofrightfrontallobehaddysfunction.Conclusio
6、n:patientswithclinicalexaminationofethmoidsinusandnasalcavitywithlumpappearsatthetopandalongtheolfactorynerveshowedatrendofspreading,atthesituationsuchasevidentstrengthening,weshouldfocusoncheckingforolfactorynerveinpatientswithtumor.Keywords:MRI;CTexamination;Olfactorynervetumor嗅神經(jīng)母細胞瘤是臨床少見的
7、惡性腫瘤[1],起源篩骨篩板或鼻腔嗅區(qū)黏膜嗅神經(jīng)細胞。嗅神經(jīng)母細胞瘤早期無特異性,發(fā)病較隱秘[2】。臨床檢查容易被誤診,本文主要探討分析MRI和CT診斷嗅神經(jīng)母細胞瘤的影像表現(xiàn),特選取我院收治的11例嗅神經(jīng)母細胞瘤患者為本次研究對象,所奮患者均經(jīng)過病理活檢組織確診,旨在為臨床提供依據(jù)。1資料與方法1.1基本資料選取我院收治的11例嗅神經(jīng)母細胞瘤患者為本次研究對象,所冇患者均經(jīng)過病理活檢組織確診。納入標準:患者無其他伴隨性惡性疾?。换颊邿o艽他先天性疾?。换颊叩牟±Y料完整,可進行奮