脑肿瘤脊髓肿瘤

脑肿瘤脊髓肿瘤第1页/共43页脑肿瘤、脊髓肿瘤CT、MR第2页/共43页Tumors肿瘤Gliomas胶质瘤Meningiomas脑膜瘤Pituitarytumor垂体瘤Acousticneurinoma听神经瘤Craniopharyngioma颅咽管瘤Metastatictumors转移瘤Etc等等第3页/共43页Gliomas胶质瘤AstrocytictumorsOligodendroglialtumorsEpendymalcelltumorsMixedgliomas第4页/共43页AstrocytomaLow-grade第5页/共43页Astrocytoma第6页/共43页GBM第7页/共43页GBM第8页/共43页GBM第9页/共43页Oligodendroglioma第10页/共43页Oligodendroglioma第11页/共43页Oligodendroglioma第12页/共43页Ependymoma第13页/共43页Ependymoma第14页/共43页Ependymoma第15页/共43页Diagnosisanddifferentialdiagnosisforglioma

胶质瘤的诊断和鉴别诊断第16页/共43页Meningioma脑膜瘤Meningiomasrepresent15%ofallbraintumorsMeningiomasaremorecommoninwomenthaninmen,withamale-to-femaleratioof1:2Meningiomashaveapredilectiontooccurfromthethirdtosixthdecadesoflife,withapeakincidenceoccurringinindividualsagedapproximately45years.第17页/共43页Meningioma第18页/共43页Meningioma第19页/共43页Meningioma第20页/共43页Meningioma第21页/共43页Meningioma第22页/共43页PituitaryAdenoma垂体瘤Tumourarisingfromthecellsofthepituitarygland.Microadenoma(<10mm)Macroadenoma(>10mm)Pituitaryadenomasareusuallybenigntumours,andpituitarycarcinomasareveryrare.第23页/共43页PituitaryAdenoma垂体瘤CoronalandsagittalthinsliceT1-weightedimages,withoutandwithcontrastenhancement.Microadenomasareusuallyiso-hypointenseandareparticularlywellseenaftergadoliniuminjectionwhenthepituitaryglandenhanceshomogeneously.Thedirectionofgrowthofmacroadenomaiswellappreciatedandinvolvementofchiasmandcavernoussinusmaybedetected.第24页/共43页第25页/共43页Microadenoma,pituitary第26页/共43页Microadenoma,pituitaryDelayafewminutes第27页/共43页Acousticneurinoma听神经瘤PlainfilmCTMRI第28页/共43页第29页/共43页Craniopharyngioma颅咽管瘤Craniopharyngiomasaretypicallyfoundinthefirsttwodecadesoflifeandusuallyhavebothsolidandcysticcomponents.Cystcontentmayhavedifferentappearancesbutusuallyappearsas"machine-oil"andcontainscharacteristicsuspendedcholesterolcrystals.Calcificationsarepresentinthevastmajorityofthesetumours.第30页/共43页第31页/共43页Metastatictumors转移瘤Sex:primarytumor.Lungcanceristhemostcommonsourceofmetastasesinmalepatients,whilebreastcanceristhemostcommonsourceinfemalepatients.Age:primarysystemictumors.Mostbrainmetastasesoccurinpatientsaged35-70years.CTMRI第32页/共43页第33页/共43页第34页/共43页第35页/共43页第36页/共43页Spinalcord脊髓Examniationmet