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1、NeoplasmsofGenitourinarySystem泌尿系肿瘤AdenocarcinomaoftheKidney(RenalCellCarcinoma,RCC,肾细胞癌)RCCInUS(1999),30,000newcasesdiagnosed,11,900deathsfromthisdiseaseRCCaccountsfor3%ofadultcancers,85%ofallprimarymalignantrenaltumorsRCCoccursmostcommonlyin5th~6thdecade,male-femaleratio2:1Etiology
2、Cause:unknownRiskFactors:cigarettesmoking,exposuretoasbestos(石棉)andtanning(鞣革)productsEtiologyRCCoccursin2forms:--inherited(遗传):chromosometranslocation,VonHippel-Lindaudisease--sporadic(散发)PathologyRCCoriginatesfromtheproximalrenaltubularepithelium.Types:ClearcelltypeGranularcelltype
3、MixedcelltypeRCCismostoftenamixedadenocarcinoma(腺癌).TumorStaging(RobsonSystem)I:Tumorisconfinedwithinthekidneyparenchyma.II:TumorinvolvestheperinephricfatbutconfinedwithinGerota’sfascia(includingtheadrenal).IIIA:Tumorinvolvesthemainrenalvein/inferiorvenacava.TumorStaging(RobsonSystem
4、)IIIB:TumorinvolvesregionalLN.IIIC:TumorinvolvesbothlocalvesselsandLN.IVA:Tumorinvolvesadjacentorgansotherthantheadrenal.IVB:Distantmetastases.ClinicalFindingsSymptoms&SignsA.Classicaltriad——grosshematuria,flankpain,palpablemass(onlyin10~15%advancedcases)Symptomssecondarytometastatic
5、disease:dysnea&cough,seizure&headache,bonepainRenaltumorsareincreasinglydetectedincidentallybyCTorultrasoundClinicalFindingsB.ParaneoplasticSyndromes:erythrocytosis(红细胞增多症),hypercalcemia(高钙血症),hypertensionC.LabFindings:anemia,hematuria(60%),ESR↑,ClinicalFindingsD.X-rayFindings:*Ultra
6、sonography*IntravenousUrography(IVU):75%accurate(usedalone),calcification*CTscanning:moresensitive,mass+renalhilum,perinephricspaceandvenacava,adrenals,regionalLNandadjacentorgans*RenalAngiographyIVUofrightRCCCTscanofrightRCCCTscanofleftRCCRCCinvadingrenalveinLeftcysticRCCLeftcysticR
7、CCDifferentialDiagnosisBenignrenaltumors:Angiomyolipoma(血管平滑肌脂肪瘤,错构瘤)Treatment1.Localizeddisease:Surgicalremoval---onlypotentiallycurativetherapyRadicalNephrectomy(enblocremovalofthekidneyandGerota’sfasciaincludingipsilateraladrenal,proximal½ureter,regionallymphadenectomy(淋巴结清扫)Treat
8、ment2.Dissem