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HistoryFemale63ygetwoundinafall1monthagoUSG:solidmasslesionofleftkidneySPECT：highperfusioninthemasslesionofleftkidneyCorticalperiod（CTvalue:110HU;36HU)Medullaperiod（CTvalue:180HU;62HU)Dischargeperiod（CTvalue:107HU;57HU)VROperation：leftkidneyradicalcorrectionPathology：RenaloncocytomaDDXRenaloncocytoma,RORenaloncocytomaRenaloncocytomasarebenign,rare,solidtumoursofthekidney,derivedrenalcortexepitheliumofproximalconvolutedtubule.，comprising3–7%ofallrenaltumors

Occurinallages,themostinabout50y，generallymenmorethanwomen,M:F1.5～1.7:1Mostissolitary,canalsobecomplicatedwithPolycystickidney,renalangiomyolipomas,renalcancerusuallyasymptomaticanddiscoveredincidentallyRenaloncocytomaCTscannerAwell-definedmarginCentralstellatescard<3cm,homogeneous,

rare

scard≥3cm,withvolumebecomelarger,centraloreccentricalscarwillbeoccurredfollower

calcification

CysticornecrosisrarelyRenaloncocytomaCTenhancement：Corticalperiod

orMedullaperiod:substantialpartimprovedobviouslyandhomogeneously,thedegreeofenhancementislargerthanorequaltothecortexinthesameperiodDischargeperiod

:enhanceddegreereduce,belowtherenalparenchymadensity,higherthanmuscledensityAcentrallyplacednon-enhancingarea,likelyrepresentingafibrousscarSpoke-wheel-likeenhancementPartofthecoatingcanbeseeninroughvesselsplainscancorticalperiodMedullaperiodDischargeperiodL-ROplainscanDorticalperiodDischargeperiodL-RO雙腎嗜酸細(xì)胞瘤伴鈣化雙腎嗜酸細(xì)胞瘤右腎嗜酸細(xì)胞瘤DifferentialDiagnosisrenalangiomyolipomarenalchromophobecellcarcinoma,RCCCrenalclearcellcarcinomarenalclearcellcarcinomaDiagnosticpointLocatedinthecortex，inordinanceshape,irregularmargincysticornecrosisiscommon，densitynonuniformintheplainscanrenalpelvisandrenalcalyxbedestroyed,easytotransferrichbloodsupplyfortumor,thedegreeofenhancementisgreaterthanorequaltothecortexofthesameperiodinthecorticalperiod,CT>100HU,CTvaluefellrapidlyinthemedullaperiod,“Quickinquickout”Renalchromophobecellcarcinoma

(RCCC)DiagnosticpointLocatedinthemedullary,expansiongrowthtorenalsinusandrenalcortical,tumorsizelarger,onthesurroundingrenalorganizationperformancefortheonlysignsofoppressionEnhancedscanning:Lighttomoderate,homogeneousstrengtheningofthetumor,changeofdensityisnotobviousineachperiod,AndthereisnoclinicalsymptomsandtransferofthepatientsRCCCcanalsoseescar,butlessthantheROCysticornecrosisrarelyIdentifypoints：Theenhanced,almostthestrengtheningo

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