简介：目的探讨喉癌前哨淋巴结定位和活检技术的可行性及其对颈淋巴结转移癌的预测价值.方法采用1%专利兰(PatentblueVdye),对31例颈淋巴结N0的喉癌患者进行术中前哨淋巴结定位研究,且对术中前哨淋巴结及颈清扫术切除淋巴结进行常规病理检查和对比,观察前哨淋巴结对颈淋巴结转移癌的预测值.结果3l例中21例找到前哨淋巴结,成功率67.7%,前哨淋巴结对颈淋巴结转移癌的预测值为95.2%.结论喉癌前哨淋巴结的定位和活检技术切实可行,且前哨淋巴结检测能够准确预测颈淋巴结转移癌的状况.

简介：AIM:Toinvestigatethelevelsofserumsolubleintercellularadhesionmolecules-1(sICAM-1)andneutrophilicexpressionofCD18inpatientswithvariousstagesofdiabeticretinopathyandtodeterminetheirdifferentexpressionpatterninthedevelopmentofdiabeticretinopathy(DR).·METHODS:LevelsofserumsICAM-1andCD18onthesurfaceofneutrophileweremeasuredin41DRpatients,theywereclassifiedinthreesubgroupsaccordingtothestageofretinopathyasdeterminedbyfund’sophthalmoscopy;10controlsubjectswerealsostudied.sICAM-1weremeasuredbyenzyme-linkedimmunosorbentassayandCD18byflowcytometry.·RESULTS:TheneutrophilicCD18expressionandserumsICAM-1levelwereallsignificantlyelevatedinalldiabeticsubgroupscomparedtocontrolsubjects(P<0.01).ThedifferencesofCD18andsICAM-1amongthediabeticsubgroupsweresignificantinCD18butnotinsICAM-1.TheprogressionofretinopathywasassociatedwithanincreasebothinCD18andinsICAM-1levelsbysimplecorrelationanalysis(β=0.74,P<0.001;β=0.38,P<0.01,respectively).ButstepwisemultipleregressionanalysisrevealedthatonlyCD18wasindependentdeterminantofretinopathy(β=1.04,P<0.01).·CONCLUSION:OurresultsconfirmthecontributionofendothelialandneutrophilicactivationinthedevelopmentofDRasindicatedbyincreasedlevelsofCD18andsICAM-1.However,adirectimplicationofCD18andICAM-1intheprogressionofDRcanbesupportedonlyintheCD18butnotICAM-1.CD18andICAM-1mayplaydifferentroleinthedevelopmentofdiabeticretinopathy.

简介：目的探讨微小型甲状腺乳头状癌颈淋巴转移的临床意义.方法回顾性分析1998年5月～2001年12月住院治疗的27例微小型甲状腺乳头状癌患者,其中23例行颈清扫术,并与同期住院治疗的144例非微小型甲状腺乳头状癌进行对比.结果微小型与非微小型甲状腺乳头状癌颈部淋巴结转移分别为12/23(52.2%)、108/144(75.0%),淋巴结阳性率分别为29.7%、37.8%;Ⅵ区淋巴结转移分别为9/23(39.1%)、43/58(74.1%),淋巴结阳性率分别为32.0%、58.4%;Ⅰ-Ⅴ区淋巴结转移分别为11/23(47.8%)、93/144(64.6%),淋巴结阳性率分别为15.2%、34.9%,三者统计学均有显著性意义.10例临床颈部N0微小型甲状腺乳头状癌患者,6例病理检查发现淋巴结转移.结论微小型甲状腺乳头状癌患者颈淋巴结转移比非微小型低,以颈静脉链为常见部位,其次是气管食管沟.对一个确诊为微小型甲状腺乳头状癌患者,都应行颈清扫术.

简介：·AIM:Toexploretheeffectofimmunizationwithcopolymer-1(COP-1)andretinalstemcells(RSCs)transplantationoninterferon-gamma(IFN-γ)levelsinaratexperimentalglaucomamodel.·METHODS:Anexperimentalglaucomawasinducedbyargonlaserphotocoagulationoftheepiscleralveinsandlimbalplexusintherighteyeofrats.Immediatelyfollowingglaucomainduction,ratswereimmunizedwithCOP-1.RSCswereculturedandtransplantedintravitreallyintotheeyesofglaucomamodelanimals1weekpost-lasertreatment.Sixexperimentalgroupswereused:COP-1/RSC,PBS/RSC,COP-1/PBS,PBS/PBS,glaucomamodelgroup,andanormalcontrolgroup.TheconcentrationofIFN-γinaqueoushumor(AH)andserumwasmeasuredbyenzyme-linkedimmunosorbentassay(ELISA)ineachofthesixgroups.Retinalganglioncell(RGC)survivalwasassessedbyquantifyingapoptosisusingHoechststaining.·RESULTS:ConcentrationsofIFN-γinAHandserumofratsthathadundergoneglaucomainductionwerehigherthanthoseofnon-inducedcontrolrats.TheconcentrationsofIFN-γinAHandserumoftheCOP-1/RSCstreatedgroupweredeterminedtobe2371.9ng/Land710.9ng/L,respectively,whichweresignificantlylowerthanthoseintheothertreatedgroups(P<0.05).Infact,IFN-γlevelsinthedualtreatedgroupwerereducedtobackgroundlevels.TheCOP-1/RSCgrouphadlowernumberofapoptoticRGCsthantheotherthreeexperimentalgroups(P<0.05).·CONCLUSION:ThereducedlevelsofIFN-γinAHandserumoftheCOP-1/RSCgroupmayberelatedtosynergisticeffectsbetweenRSCstransplantationandCOP-1immunemodulation.ItislikelythatthelowerlevelsofIFN-γpreventedRGCsglaucomatousapoptosis.·

简介：<正>眼眶原发性非霍奇金恶性淋巴瘤(non-Hodgkinlymphoma,NHL)罕见,而与鼻外伤相关的NHL临床少有报告。现报道本院收治的1例如下。患者,男性,14岁。因鼻外伤后右内眦部肿胀1个月入院。患者于1个月前因打球致鼻部受伤,当时鼻腔少量出血、疼痛甚剧自行作简单止血处理。1周后因鼻部肿胀,在当地医院诊断为"鼻骨骨折",行