子宫腺肌症常见和不常见的MRI表现-影像FTP.ppt

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1、UsualandUnusualImagingManifestationsonMRIofAdenomyosis郑州大学第一附属医院磁共振科何杰2013年4月17日子宫腺肌症常见和不常见的MRI表现Adenomyosisisacommonnonneoplasticgynecologicdiseasecharacterizedbythepresenceofectopicendometriumwithinthemyometrium.Adenomyosistypicallyaffectsmultiparous,preme

2、nopausalwomenover30yearsofageandmaycausedysmenorrhea,menorrhagia,andabnormalgenitalbleeding.子宫腺肌症是一种常见的非肿瘤性妇科疾病，是发生在子宫肌层的子宫内膜异位症。其主要发生于超过30岁，绝经前的经产妇并且可能引起痛经，月经过多和不正常的阴道出血的症状。Magneticresonance(MR)imagingisanoninvasivemodalitywithhighsensitivityandspecificityf

3、ordiagnosisofadenomyosis.Incasesofanenlargeduterusrevealedwithultrasonography,MRimagingallowsdifferentiationofadenomyosisfromleiomyomaorotherpathologicconditionsowingtoitsexcellenttissuecontrastresolution.磁共振（MR）成像是一种非侵入性的检查方式，其在诊断子宫腺肌症上具有高的灵敏度和特异度。当超声检查中发现子

4、宫增大时，磁共振由于其出色的组织对比分辨率可以把子宫腺肌症与子宫肌瘤或其他疾病鉴别出来。IntroductionOnT2-weightedimages,typicaladenomyosisappearsasanill-demarcatedlow-signal-intensitylesionwithuterineenlargement.However,variousphysiologicorpathologicstatesmayaffecttheMRimagingappearanceofadenomyosisan

5、dmayresultinatumorlikeappearance在T2WI上，子宫腺肌症的典型表现为一个边界不清的低信号强度病变伴随着子宫增大。然而，多种生理和病理改变也许会影响子宫腺肌症的MRI表现并且会导致其出现肿瘤样的表现SpecifictopicsdiscussedareMRimagingmanifestationsoftypicaladenomyosis,atypicalMRimagingmanifestationsofadenomyosis,pitfallsindiagnosisofadenomyo

6、sis,讨论的具体话题包括子宫腺肌症的典型MRI表现，子宫腺肌症的不典型MRI表现，子宫腺肌症的诊断误区IntroductionMRImagingManifestationsofTypicalAdenomyosis子宫腺肌症的典型MRI表现TypicalAdenomyosisAtpathologicanalysis,adenomyosisischaracterizedbythepresenceofectopicendometrialglandsandstromawithinthemyometriumwithhy

7、pertrophyandhyperplasiaofsmoothmuscleAdenomyosismayaffecttheuterinemyometriumdiffuselyandresultinadiffuselyenlargeduterus,oritmaybelocalizedasanadenomyoma.病理分析，子宫腺肌症的特征性表现是子宫肌层内异位的子宫内膜腺体和间质的存在和平滑肌的肥大增生。子宫腺肌症也许会弥漫性的影响子宫肌层并导致子宫弥漫性的增大，或者会作为腺肌瘤局限性的影响肌层Acutsectio

8、nofadiffuselyadenomyoticuterusshowsthickenedmyometriumduetotheill-definedadenomyosis;thethickenedmyometriumiscomposedofhaphazardlydistributedhypertrophiedmusculartrabeculaesurroundingectopicendo