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1、腦腫瘤、脊髓腫瘤CT、MRTumors腫瘤Gliomas膠質(zhì)瘤Meningiomas腦膜瘤Pituitarytumor垂體瘤Acousticneurinoma聽神經(jīng)瘤Craniopharyngioma顱咽管瘤Metastatictumors轉(zhuǎn)移瘤Etc等等Gliomas膠質(zhì)瘤AstrocytictumorsOligodendroglialtumorsEpendymalcelltumorsMixedgliomasAstrocytomaLow-gradeAstrocytomaGBMGBMGBMOligodendrogliomaOligod
2、endrogliomaOligodendrogliomaEpendymomaEpendymomaEpendymomaDiagnosisanddifferentialdiagnosisforglioma膠質(zhì)瘤的診斷和鑒別診斷Meningioma腦膜瘤Meningiomasrepresent15%ofallbraintumorsMeningiomasaremorecommoninwomenthaninmen,withamale-to-femaleratioof1:2Meningiomashaveapredilectiontooccurfr
3、omthethirdtosixthdecadesoflife,withapeakincidenceoccurringinindividualsagedapproximately45years.MeningiomaMeningiomaMeningiomaMeningiomaMeningiomaPituitaryAdenoma垂體瘤Tumourarisingfromthecellsofthepituitarygland.Microadenoma(<10mm)Macroadenoma(>10mm)Pituitaryadenomasareus
4、uallybenigntumours,andpituitarycarcinomasareveryrare.PituitaryAdenoma垂體瘤CoronalandsagittalthinsliceT1-weightedimages,withoutandwithcontrastenhancement.Microadenomasareusuallyiso-hypointenseandareparticularlywellseenaftergadoliniuminjectionwhenthepituitaryglandenhancesho
5、mogeneously.Thedirectionofgrowthofmacroadenomaiswellappreciatedandinvolvementofchiasmandcavernoussinusmaybedetected.Microadenoma,pituitaryMicroadenoma,pituitaryDelayafewminutesAcousticneurinoma聽神經(jīng)瘤PlainfilmCTMRICraniopharyngioma顱咽管瘤Craniopharyngiomasaretypicallyfoundint
6、hefirsttwodecadesoflifeandusuallyhavebothsolidandcysticcomponents.Cystcontentmayhavedifferentappearancesbutusuallyappearsas"machine-oil"andcontainscharacteristicsuspendedcholesterolcrystals.Calcificationsarepresentinthevastmajorityofthesetumours.Metastatictumors轉(zhuǎn)移瘤Sex:p
7、rimarytumor.Lungcanceristhemostcommonsourceofmetastasesinmalepatients,whilebreastcanceristhemostcommonsourceinfemalepatients.Age:primarysystemictumors.Mostbrainmetastasesoccurinpatientsaged35-70years.CTMRISpinalcord脊髓ExamniationmethodsFindingsandanalysis
