CT manifestationsandmisdiagnosisofatypicalpulmonaryhamartoma / 实用放射学杂志

ABSTRACT

Objective ToanalyzetheCTimagingfeaturesofatypicalpulmonaryhamartomas,soastounderstandthecausesof misdiagnosisandimprovetheaccuracyofdiagnosis.Methods 18caseswithatypicalpulmonaryhamartomasconfirmedbypathology inourhospitalwerecollectedretrospectively,including9 malesand9females.18caseswereexaminedbychestCTscans,among which,2caseswithplainscans,and16caseswithenhancedscans.TheresultsofCTimagingwereanalyzedbytwoassociatechief radiologistswithdoubleblindmethod,observingthelesionlocation,size,edge,border,density,enhancementfeatures,theremaining lungtissue,theageofonset,history,andclinicalmanifestations.Results Inall18cases,3caseswereendotracheallesion,ofwhich1 casewasinleftmainbronchus,theothertwowereinrightmiddleandupperbronchusrespectively,showingcalcificationdensityand subsequentatelectasis;15caseswereperipherallesions,including7casespresentingrightpulmonarynodulesand8casespresenting leftpulmonarynodules.Allperipheralcasesweresolitarypulmonarynoduleswithoutcalcificationandfatdensity.Thediameterof nodulesrangedfrom0.3cmto2.1cm.5casesshowedsmoothroundisolatednodulesand10casesshowedshallowlobulatednodules. In16casesofenhancedscan,1lesionshowedremarkableenhancement,6lesionsshowedslightlyenhancement,and9lesionsshowed nosignificantenhancement.Conclusion PulmonaryhamartomaislackofcharacteristicofCTimaging,whichisthemainreasonof misdiagnosis.Recognizingitsdiverseimageperformancesincludingshallowlobulation,roughedge,remarkableenhancementandetc. helpsusavoidmisdiagnosis.