Gastrointestinal angiodysplasias or angioectasias are one of the most common causes of occult gastrointestinal bleeding. Epidemiology Peak incidence occurs ...×ArticlesLogInCasesSignUpCoursesQuizBlogDonateAbout×MenuSearchADVERTISEMENT:Radiopaediaisfreethankstooursupportersandadvertisers.BecomeaGoldSupporterandseenoads.ArticlesCasesCoursesLogInLoginSignup{"url":"/signup-modal-props.json?lang=us\u0026email="}ArticlesCasesCoursesQuizAboutBlogGoad-freeSearchGastrointestinalangiodysplasiaDrRohitSharma◉andDrHenryKnipe◉◈etal.Gastrointestinalangiodysplasiasorangioectasias areoneofthemostcommoncausesofoccultgastrointestinalbleeding.Onthispage:Article:EpidemiologyClinicalpresentationPathologyRadiographicfeaturesTreatmentandprognosisReferencesImages:CasesandfiguresEpidemiologyPeakincidenceoccursinpatientsintheir60-70s3.ClinicalpresentationPatientscanpresentwithsymptomsandsignsupperorlowergastrointestinalbleeding althoughtheycancommonlybeanincidentalfinding. PathologyAngiodysplasiareferstodilated,thin-walledbloodvessels(capillaries,venules,veins) foundinthemucosaandsubmucosaofthegastrointestinaltract.Thepathogenesisisunclear3. Theyaremultiplein~50%ofcases1,2,andcanbefoundthroughoutthegastrointestinaltract,butmostcommonlyinthececumandrightcolonontheantimesentericborder. AssociationsHeydesyndrome:bleedingangiodysplasiaandaorticstenosis(controversial1)chronicrenalfailurevonWillebranddiseaseRadiographicfeaturesCTappearasfocalareas(<5mm)ofcontrastenhancementinthebowelwall(mostprominentintheentericphase3)earlyfillingofanantimesentericvein4Angiographyectaticvesselsbutnomass6earlyvenousenhancementindicatingarteriovenousshuntingTreatmentandprognosisApproximately50%ofgastrointestinalhemorrhagefromangiodysplasiaceaseswithoutintervention.Endovasculartreatmentisgenerallynoteffectiveandfirst-linetreatmentisinterventionalendoscopy. Thereisapost-treatmentbleedingrateof~25%2,4.References1.GunjanD,SharmaV,RanaSSet-al.Smallbowelbleeding:acomprehensivereview.GastroenterolRep(Oxf).2014;2(4):262-75.

Mesenteric angiodysplasia: CT findings. ... approach, with converging input from the internist, gastroenterologist, radiologist, and surgeon.HomeAdvancedSearchTeachingCasesQuizzesFAQsContactUsHistorySubmitaCaseAboutUsHomeAdvancedSearchCase7503CASE7503Publishedon28.04.20090Mesentericangiodysplasia:CTfindings.SectionAbdominalimagingCaseTypeClinicalCasesAuthorsAngeliS,CiniL,FaggioniL,NeriE,CaramellaD,BartolozziC.ConnectedauthorsLorenzoFaggioniPatient71years,femaleDownloadasPDFPrintShowrelatedcasesNotifyadminClinicalHistoryA71-year-oldwomanwithsevereanemiapresentedtoourDepartment.ImagingFindingsA71-year-oldpatientcametoourattentionduesevereanaemia.Faecaloccultbloodtest,opticalcolonoscopy,andoesophagogastroduodenoscopywerenegative,andultrasoundexaminationoftheabdomenwasinconclusiveduetomarkedmeteoricabdominaldistension.Therefore,thepatientunderwentamultidetectorCTexaminationofthesmallbowelacquiredafteroraladministrationof2Lofisosmolarsolution(polyethilenglycole)andintravenousinjectionofanantispasmodicagent(N-butylhyoscinebromide)astomaximizelumendistensionandimprovewall-to-lumencontrast.Imagesobtainedbeforeintravenousadministrationofiodinatedcontrastmaterialshowednoevidentalterationsofthebowelwall,whileoncontrast-enhancedimagesobtainedinthevenousphase(approximately70secondsfollowingstartofcontrastmediuminjection),ecstaticveinscouldbeseeninsidethewallofsomesmallbowelloopslocalizedintheleftiliacfossa,suggestingthediagnosisofsmallbowelangiodysplasia(AD).Thishypothesiswassupportedbythefindingofanecstaticdrainingbranchofthesuperiormesentericvein,asdisplayedonmultiplanarreformation(MPR),maximumintensityprojection(MIP),andvolumerendering(VR)views.Thediagnosiswasconfirmedsurgically.DiscussionObscuregastrointestinal(GI)bleedingisarelativelycommonproblemfacinginternists,gastroenterologists,andsurgeonsinausualclinicalpractice.Itsaetiologyisoccasionallysuggestedbypatient'sage,history,andmedications.Smallbowelhaemorrhageisresponsibleforapproximately4%ofallcasesofgastrointestinalbleed

GI) bleeding and of the underlying causes; angiodysplasia is a ...NCBISkiptomaincontentSkiptonavigationResourcesHowToAboutNCBIAccesskeysMyNCBISignintoNCBISignOutJournalListBMJCaseRepv.2014;2014PMC3975533BMJCaseRep.2014;2014:bcr2013203414.Publishedonline2014Mar24.doi: 10.1136/bcr-2013-203414PMCID:PMC3975533PMID:24663251MDCTdemonstrationofjejunalangiodysplasia:anuncommoncauseoflowergastrointestinalhaemorrhageVandanaGoel,1,2AmitKumarVerma,1SonaliSethi,1andSunilKumarPuri1VandanaGoel1DepartmentofRadiology,GBPantHospital,NewDelhi,India2DepartmentofRadiology,KingGeorgeMedicalUniversity,Lucknow,UttarPradesh,IndiaFindarticlesbyVandanaGoelAmitKumarVerma1DepartmentofRadiology,GBPantHospital,NewDelhi,IndiaFindarticlesbyAmitKumarVermaSonaliSethi1DepartmentofRadiology,GBPantHospital,NewDelhi,IndiaFindarticlesbySonaliSethiSunilKumarPuri1DepartmentofRadiology,GBPantHospital,NewDelhi,IndiaFindarticlesbySunilKumarPuriAuthorinformationArticlenotesCopyrightandLicenseinformationDisclaimer1DepartmentofRadiology,GBPantHospital,NewDelhi,India2DepartmentofRadiology,KingGeorgeMedicalUniversity,Lucknow,UttarPradesh,IndiaCorrespondencetoDrAmitKumarVerma,moc.liamg@52treblig.amrevrdAccepted2014Feb11.Copyright2014BMJPublishingGroupLtdA20-year-oldmanpresentedwithmelenaforthepast3 weeks.Hehadnohistoryoffever,abdominalpain,alteredbowelhabits,non-steroidalanti-inflammatorydrugsintake,petechiaeorweightloss.Laboratorymarkerswereunremarkableexceptforalowhaemoglobin(5.2 g/dL)forwhichmultiplebloodtransfusionsweregiven.Acontrast-enhancedCT(venousphase)revealedserpiginousvascularchannelsalongthevalvulaeoftheproximaljejunum,althoughtherewasnoactivecontrastextravasationseen(figures1and​and2).2).Inaddition,therewasasuspicionofmalrotationofthebowel,whichwasconfirmedpreoperatively.Postoperativehistopathologyfollowingsegmentaljejunalresectionconfirmedangiodysplasiaofthesmallbowel.OpeninaseparatewindowFigure 1(AandB)Axialcontrast-enhancedimagesinportalphaseshowingintramuralandperientericdilatedserpiginousvascularc

Angiodysplasia of the colon was diagnosed by arteriography in 33 patients. Approximately one fourth of the lesions were located in the left side ...