脑肿瘤脊髓肿瘤ctmr（吴仁华）课件

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1、脑肿瘤、脊髓肿瘤CT、MRTumors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Gliomas胶质瘤AstrocytictumorsOligodendroglialtumorsEpendymalcelltumorsMixedgliomasAstrocytomaLow-gradeAstrocytomaGBMGBMGBMOlig

2、odendrogliomaOligodendrogliomaOligodendrogliomaEpendymomaEpendymomaEpendymomaDiagnosisanddifferentialdiagnosisforglioma胶质瘤的诊断和鉴别诊断Meningioma脑膜瘤Meningiomasrepresent15%ofallbraintumorsMeningiomasaremorecommoninwomenthaninmen,withamale-to-femaleratioof1:

3、2Meningiomashaveapredilectiontooccurfromthethirdtosixthdecadesoflife,withapeakincidenceoccurringinindividualsagedapproximately45years.MeningiomaMeningiomaMeningiomaMeningiomaMeningiomaPituitaryAdenoma垂体瘤Tumourarisingfromthecellsofthepituitarygland.Mic

4、roadenoma(<10mm)Macroadenoma(>10mm)Pituitaryadenomasareusuallybenigntumours,andpituitarycarcinomasareveryrare.PituitaryAdenoma垂体瘤CoronalandsagittalthinsliceT1-weightedimages,withoutandwithcontrastenhancement.Microadenomasareusuallyiso-hypointenseandar

5、eparticularlywellseenaftergadoliniuminjectionwhenthepituitaryglandenhanceshomogeneously.Thedirectionofgrowthofmacroadenomaiswellappreciatedandinvolvementofchiasmandcavernoussinusmaybedetected.Microadenoma,pituitaryMicroadenoma,pituitaryDelayafewminute

6、sAcousticneurinoma听神经瘤PlainfilmCTMRICraniopharyngioma颅咽管瘤Craniopharyngiomasaretypicallyfoundinthefirsttwodecadesoflifeandusuallyhavebothsolidandcysticcomponents.Cystcontentmayhavedifferentappearancesbutusuallyappearsas"machine-oil"andcontainscharacter

7、isticsuspendedcholesterolcrystals.Calcificationsarepresentinthevastmajorityofthesetumours.Metastatictumors转移瘤Sex:primarytumor.Lungcanceristhemostcommonsourceofmetastasesinmalepatients,whilebreastcanceristhemostcommonsourceinfemalepatients.Age:primarys

8、ystemictumors.Mostbrainmetastasesoccurinpatientsaged35-70years.CTMRISpinalcord脊髓ExamniationmethodsFindingsandanalysis