脑肿瘤脊髓肿瘤ctmr（吴仁华）课件_1

《脑肿瘤脊髓肿瘤ctmr（吴仁华）课件_1》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

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-gradeAstrocytomaGBMGBMGBMOligodendrogliomaOligode

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

3、thethirdtosixthdecadesoflife,withapeakincidenceoccurringinindividualsagedapproximately45years.MeningiomaMeningiomaMeningiomaMeningiomaMeningiomaPituitaryAdenoma垂体瘤Tumourarisingfromthecellsofthepituitarygland.Microadenoma(<10mm)Macroadenoma(>10mm)Pituitaryadenomasareusual

4、lybenigntumours,andpituitarycarcinomasareveryrare.PituitaryAdenoma垂体瘤CoronalandsagittalthinsliceT1-weightedimages,withoutandwithcontrastenhancement.Microadenomasareusuallyiso-hypointenseandareparticularlywellseenaftergadoliniuminjectionwhenthepituitaryglandenhanceshomoge

5、neously.Thedirectionofgrowthofmacroadenomaiswellappreciatedandinvolvementofchiasmandcavernoussinusmaybedetected.Microadenoma,pituitaryMicroadenoma,pituitaryDelayafewminutesAcousticneurinoma听神经瘤PlainfilmCTMRICraniopharyngioma颅咽管瘤Craniopharyngiomasaretypicallyfoundinthefir

6、sttwodecadesoflifeandusuallyhavebothsolidandcysticcomponents.Cystcontentmayhavedifferentappearancesbutusuallyappearsas"machine-oil"andcontainscharacteristicsuspendedcholesterolcrystals.Calcificationsarepresentinthevastmajorityofthesetumours.Metastatictumors转移瘤Sex:primary

7、tumor.Lungcanceristhemostcommonsourceofmetastasesinmalepatients,whilebreastcanceristhemostcommonsourceinfemalepatients.Age:primarysystemictumors.Mostbrainmetastasesoccurinpatientsaged35-70years.CTMRISpinalcord脊髓ExamniationmethodsFindingsandanalysis