ABSTRACT
Objective ToexploretheCTcharacteristic manifestationsoftheinfantilehepatichemangioendothelioma (IHHE). Methods 10cases(5malesand5females)withIHHE (agerangefromonly1dayto8months,withthemeanageof53days)were collected.Theclinicalmanifestationsincludedabdominalmassesin5cases,vomitingin2andjaundicein1.Therewasababygirlwith congenitalcholedochalcyst.Allpatientsunderwenttheplainandcontrast-enhancedscans.Results CTshowedlocalandsingleintrahepatic massin6cases(including2casesinrighthepaticlobe,2casesinquadratelobeand2casesinleftlobe),2－3massesinliverin2,and diffusenodulesin2.PlainCTshowedallmasseswithlowdensityorlow-equalhybriddensity.Themarginswereclearin4cases,and unclearin6cases,withspottedcalcificationin2cases.TheenhancedCTshowedall10caseswithrosette-likemarginalenhancement, and6caseswithgradualwash-inindelayedphase.Threepatientsreceivedinterventionaltreatmentswithintrahepaticarterialembolization, andthenthediffuselesionsintwopatientssignificantlyreducedafter20monthsand33monthsrespectively,whilethesinglelesionin 1casealsosignificantlyshrankafter6monthsoftreatment.Conclusion CTisaneffectivemethodforthediagnosisofinfantilehepatic vascularendothelioma.Marginalring-enhancementisthecharacteristicmanifestationofIHHE,anditdoesnotinvadeadjacentliver parenchymaandbloodvessels,whichcanbedistinguishedfromotherliveroccupyinglessions.