简介:Tostudytheclinicalpathologicalcharacteristicsanddifferentiationdiagnosisofthechondroidparachordomafromprimarytumorsormetastatictoulna,femurandradius.MethodsThreecasesofprimarychondroidparachordomaoftheulma,femurandradiuswerestudiedbyhistopathologicalobservationandimmunohistochemicalstainingandbypathologicalconsultation.ResultsThehistologicalfeaturesoftumorwerecomposedoftwothechordomaceilssubtotalandthechondrosareomaceilsofsmall-portio.Thetumorwasarrangedvaryinsizesoflobularandbrinkoflobularwereseplumsmallgirderofchondroid,orthetissuefiber.Thetumorcellsweredistributedsheet,trabeculawithorisland-likeintheintralobular,andthetumorceilswerevaryinsizeandthekaryonheterotypicwerenopatentandthecytoplasmofrichshowslargevacuole.Thechondroidosarcomasintra-lobularwereviewedceilsbothnucleusanduninuclearofchondrolacunaeandthestromawerehyalingcartilagewithorblennoidinthemesenchyma,andthatpictureoftypicalchondrosarcoma.EMA,CK,Vimentin,S-100protein,NSEwithimmunohistochemicalmethod(ABC)stainingwerepositiveandDesmin,CD34negativeinthealloftumorcells.Thechondroidparachodomawasdiagnosedinthepathologicalread-section-conferenceandconsulation.ConclusionPrimaryulna,femurandradiuschondroidparachordomaisarareinrateofneoplasmandisdiagnoseddiflqculdy.Immunohistochemicalmethodwouldbehelpfultodiagnosis.
简介:目的探讨被动吸烟与舌癌发病的关系。方法采用病例对照研究方法,收集2010年9月-2015年1月经病理确诊的舌癌新发病例190例,并选取同期686例社区健康人群作为对照。应用非条件Logistic回归模型估算仅18岁前、仅18岁后、18岁前后均被动吸烟与舌癌发病风险的调整OR(95%CI)值,并进一步对性别、年龄进行分层分析。结果与无被动吸烟者相比,仅18岁前被动吸烟可增加舌癌的发病风险为2.813(OR=2.813,95%a:1.581~5.005),仅18岁后被动吸烟可增加舌癌的发病风险为1.666(OR=1.666,95%CI:I.055~2.631);18岁前后均被动吸烟可增加舌癌的发病风险为2.690(OR=2.690,95%CI:1.674~4.322)。而且每日暴露时间越长、开始暴露年龄越小、被动吸烟年限越长,患舌癌的危险性就越大(均有P&#〈0.05)。分层分析结果显示在被动吸烟人群中,女性或年龄960岁者比男性或年龄〈60岁者患舌癌的风险更高。结论被动吸烟是舌癌发病的危险因素,减少被动吸烟可在一定程度上降低舌癌的发生。
简介:摘要目的调查一例小脑共济失调病例,分析疫苗接种与发病的相关性。方法现场调查病例、接种单位和疫苗公司,收集病例发病治疗情况、接种单位接种情况及疫苗运转过程等信息资料。结果该病例接种史记录清楚,与发病无时间上的关联性,且患儿头颅磁共振显示小脑扁桃体轻度下疝和左侧颞部蛛网膜囊肿。接种单位和接种人员有接种资质,操作无误。疫苗有合格证书,运转正常。结论经专家组调查诊断,该病例所患疾病与疫苗接种属于偶合症,不属于预防接种反应。