DifferentialandpathologicalstudyofdifferentsubtypesofpapillaryrenalcellcarcinomabyCTimaging / 实用放射学杂志

Objective ToevaluatetheimagedifferencesofCTinsubtypepapillaryrenalcellcarcinoma(PRCC).Methods Aretrospective analysisof30multiphaseCTenhancedimagesofPRCCconfirmedbyoperationandpathologyinourhospitalwasperformed,followed byacomparativestudyofCT multistageenhancedperformanceandpathology.Results typeⅠ16cases,typeⅡ14cases,ofwhich 11casesofⅡtypePRCC wereirregularorlobulated,and4casesoftypeⅠshowedlobulated,therewarestatisticallysignificant differencesbetweenthetwogroups(P＝0.003).Venoustumorthrombusin5casesoftypeⅡPRCC,4casesoftypeⅡPRCClymph nodemetastasis,perirenalinvasionin6casesofⅡtypePRCC,but1caseofⅠPRCChadvenousthrombus,perirenalinvasionin2 cases,nocaseoflymphnodemetastasis,therewereobviousdifferencesbetweenthetwogroups(P＝0.044,P＝0.022,P＝0.025). PRCCplainscanCTvalue,CTvalueofexcretoryperiod,CTvalueaddedinthesubstantiveperiod,CTincrementduringexcretionperiod, therewarenosignificantstatisticalsignificancebetweentypetwogroups(P＝0.893,P＝0.169,P＝0.559,P＝0.155).CTvalueof corticalphase,CTvalueinperenchymalphase,CTvalueincrementincarticalphasehadsignificantlydifferencesbetweentwogroups (P＝0.013,P＝0.046,P＝0.008).Conclusion Therearecertaindifferenceintumormorphology,outsideinvasionsignsandenhancement degreebetweentypeⅠandtypeⅡPRCCandⅡtypePRCCispronetoappearperirenalinvasion,tumorthrombusandlymphnode metastasis.CTscanningishelpfulindifferentialdiagnosisofsubtypesofPRCC.

Analysis of MSCT imaging features of adrenal ganglioneuroma / 中国基层医药

Objective To discuss MSCT imaging features of adrenal ganglioneuroma ,and to sum up the key points of differential diagnosis .Methods The MSCT manifestations of 8 cases with adrenal ganglioneuroma confirmed by operation and pathology were analyzed combined with relevant literature .Results All adrenal ganglioneuromas were single ,5 cases of right adrenal gland ,3 cases of left adrenal gland ,most tumor density was uniform ,density of soft tissue in 7 cases,speckle calcification was seen in 2 cases.No enhanced or mild enhancement was found in the enhanced posterior artery ,the portal and delayed period showed mild continuous enhancement and line like separation enhancement and encapsulation enhancement .Low density of water samples in 1 case of CT plain scan ,no strengthe-ning at all stages .Conclusion Adrenal ganglioneuroma is rare , the dynamic enhanced performance of MSCT has some characteristics ,and it is beneficial to identify other adrenal tumors .