资源描述:
《上皮样血管平滑肌脂肪瘤临床病理特点,诊断与鉴别诊断》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、6例上皮样血管平滑肌脂肪瘤临床病理特点,诊断与鉴别诊断张海燕[摘要]目的探讨上皮样血管平滑肌脂肪瘤(EpithelioidAngiomyolipoma,EAML)的临床病理特点、免疫表型,诊断及鉴别诊断。方法对5例肾脏和1例肝脏上皮样血管平滑肌脂肪瘤进行病理形态观察及免疫组织化学检测。结果6例上皮样血管平滑肌脂肪瘤形态相似,肿瘤细胞多呈巢状和片状排列,围绕血管呈袖套状,瘤细胞体积人,形态单一,多边形或梭形,胞浆丰富,嗜酸性颗粒状,细胞核较大,核仁明显呈空泡状。免疫组化显示肿瘤细胞HMB45、波形蛋白(Vim)、和平滑肌特异性抗原(SMA和MSA)弥漫阳性;而上皮细胞膜抗原(EMA)、AE1/A
2、E3呈阴性。结论上皮样血管平滑肌脂肪瘤是一种具有恶性潜能的间叶源性肿瘤,形态学上常容易误诊,免疫组化对鉴别诊断有重要意义。[关键词]上皮样血管平滑肌脂肪瘤;免疫组织化学;诊断与鉴别诊断[中图分类号]R730.262SixCasesofClinicopathologicAnalysesandDifferentialDiagnosisofEpithelioidAngiomyolipomaZHENGHai-yan1,HEMiao-xia2*(1DepartmentofPathology,NanyangmedicalschoolofHenanprovince,Ncmyang,473000China2D
3、epartmentofPathology,ChanghaiHospital,TheSecondMillitaryUniversity,Shanghai200433China)[Abstract]Objective:Toexploretheclinical,pathologicfeaturesanddifferentialdiagnosisofEAML.Methods:FivecasesofkidneyEAMLandonecaseofliverEAMLwereinvestigatedpathologicallyandimmunohistochemically.Results:Microscopi
4、cally,thetumorcellsofthesixcasesofEAMLwerearrangedintheshapeof作者单位:1张海燕河南省南阳医学高等专科学校附屈医院病理科南阳4730002何妙侠第二军医大学长海医院病理科上海200433作者简介:张海燕,女,主治医师,Tel:0377-63526391,Email:nyzhanghaiyan@163.comnestsorsheet,oftenwithperivascularcurffingofepithealialcells・Thetumorcellshadhugevolumeinroundtopolygonalshapewitha
5、bundanteosinophiliccytoplasm.Thenucleusweremorelargeandthecenterofnucleuswasobviouslyemptilybubbleshaped・Immunohistochemically,HMB45,MelanA,vimentin,MSA,andSMAinthesetumorsexhibitedpositive・WhileAE1/AE3andepithelialmembraneantigen(EMA)provednegative・Conclusions:Theresultsofthisstudysuggestedthatthee
6、pithelioidangiomyolipomawasamildbutpotentiallymalignanttumorbeforedistantmetastases.Theimmunohistochemistrywasofgreatsignificanceindifferentiatialdiagnoses.[Keywords]Epithelioidangiomyolipoma;Immunohistochemistry;Differentialdiagnosis上皮样血管平滑肌脂肪瘤(EpithelioidAngiomyolipoma,EAML)是近年来逐渐被认识和接受的一种较为少见的肿瘤,
7、国内外仅冇少数病例报道2004年WHO泌尿系统和男性生殖器官肿瘤病理学及遗传学分类将该类肿瘤单独列为一类肿瘤⑵。EAML多发生于肾脏,少数发生于肝组织,但由于英组织学变杲很大,病理诊断吋易与其它一些肿瘤和混淆。本文收集5例肾脏和1例肝脏上皮样血管平滑肌脂肪瘤,分析英临床表现、病理变化及免疫组化特点,旨在探讨英临床病理特点,提供病理诊断及鉴别诊断的依据。1材料和方法1.1研究对象病例来自上海长海医院