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1、萬方數(shù)據(jù)·152·主垡越蘊(yùn)堂盤查墊!!生呈旦筮塑鲞筮!麴魚!也』曼型叢:墜翌!翌墊!!:!塵:笪:盟壘!涎腺腺泡細(xì)胞癌的CT和MR表現(xiàn)江明祥俞炎平邵國良鄺平定陳波.頭頸部放射學(xué).【摘要】目的探討涎腺腺泡細(xì)胞癌(ACC)的cT和MRI表現(xiàn),以提高對該病的影像診斷水平。方法回顧性分析經(jīng)手術(shù)病理證實(shí)的20例ACC的CT和MR表現(xiàn)(14例行CT檢查,6例行MR檢查)。20例中男7例、女13例,年齡12~73歲,中位年齡44歲。對腫瘤的部位、大小、形態(tài)、邊緣、cT密度或MR信號及強(qiáng)化形式進(jìn)行分析。結(jié)果腫瘤位于腮腺12例,左側(cè)上頜竇2例,右側(cè)頜下
2、腺、左側(cè)咽旁間隙、左側(cè)顳下窩、左側(cè)面頰部、右側(cè)鼻腔、左硬腭各1例。病灶最大徑≤3am者16例,呈邊緣光整、膨脹性生長的類圓形或橢圓形腫塊;>3cm者4例,呈邊緣不光整、侵襲性生長的不規(guī)則分葉狀腫塊,其中3例破壞上頜竇竇壁骨質(zhì),1例侵犯耳前皮膚。密度(信號)均勻6例,不均勻14例。14例CT平掃病灶呈稍低密度11例,等密度3例;6例MR病灶信號T,wI呈等信號,T:wI呈混雜高信號。19例增強(qiáng)后病灶呈明顯強(qiáng)化14例、中度強(qiáng)化2例、輕度強(qiáng)化3例。結(jié)論ACC的影像學(xué)表現(xiàn)多樣,缺乏特征性,CT、MR檢查可以準(zhǔn)確顯示腫瘤累及的范圍,為臨床制定治
3、療策略提供客觀依據(jù)?!娟P(guān)鍵詞】癌,腺泡細(xì)胞;體層攝影術(shù),x線計(jì)算機(jī);磁共振成像CTandMRima#ngrmdingsofaciniccellcarcinomainsalivaryglandJIANGMing—xiang+,YUran-ping,SHAOGuo-liang,KUANGAng—ding,CHENBo.‘DepartmentofRadiology,ZhejiangCancerHospital,Hangzhou310022,ChinaCorrespondingauthor:YUran-ping,Email:yuyanpin9
4、1962@yahoo.com.ca【Abstract】ObjectiveToexploretheCTandMRimagingfindingsofaciniccellcarcinoma(ACC)insalivaryglandandenhanaethediagnosisofthisraredisease.MethodsTheCTandMRimagingcharacteristicsof20patients(7malesand13females,medianage44yearsold)withpathologicallyprovedACCw
5、ereretrospectivelyreviewed.CTandMRimageswereevaluatedinrelationtothefollowing:location,size,morphology,margin,CTdensity/MRsignalintensityandenhancementpattern.ResultsTwelvelesionswerelocatedinparotidgland,twolesionsinmaxillarySinus,andonelesioninsubmandibular,parapharyn
6、geal,infratemperalfossa,buccal,nasalcavity,andhardpalaterespectively.Thesizeoflesionswere0.7~5.8cm.Sixteenlesionslessthan3cminsizedemonstratedroundorovalroundmasseswithwelldefinedmargin.Fourlesionsmorethan3cminsizedemonstratedirregularmasseswithunclearmargin.Amongthem,b
7、onydestructionofthewallofthemaxillarysinuswasnotedin3cases,andthepreanricularskinWasinvadedin1ease.Thedensities(signalintensity)werehomogeneousin6casesandheterogeneousin14cases.Lesionswereslightlylowdensityin1caseandisodensityin3casesonCTplainscan.Lesionswerehomogeneous
8、isointensein2casesandheterogeneousisointensein4caseson寫Ⅵ,heterogeneoushyperintenseinallcasesonT2WI.Onpostcontr