Cat scratch disease (CSD), also known as cat scratch fever or subacute regional lymphadenitis, is a bacterial infection affecting lymph nodes ...ForYouNews&PerspectiveDrugs&DiseasesCME&EducationAcademyVideoDecisionPointEdition:ENGLISHDEUTSCHESPAÑOLFRANÇAISPORTUGUÊSLogInSignUpIt'sFree!Edition:ENGLISHDEUTSCHESPAÑOLFRANÇAISPORTUGUÊSRegisterLogInNoResultsNoResultsForYouNews&PerspectiveDrugs&DiseasesCME&EducationAcademyVideoDecisionPointclosePleaseconfirmthatyouwouldliketologoutofMedscape.Ifyoulogout,youwillberequiredtoenteryourusernameandpasswordthenexttimeyouvisit.LogoutCancelhttps://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMjE0MTAwLW92ZXJ2aWV3processing....Drugs&Diseases>InfectiousDiseasesCatScratchDisease(CatScratchFever)Updated:Feb16,2021Author:RobertASchwartz,MD,MPH;ChiefEditor:MichaelStuartBronze,MD more...ShareEmailPrintFeedbackCloseFacebookTwitterLinkedInGoogle+SectionsCatScratchDisease(CatScratchFever)SectionsCatScratchDisease(CatScratchFever)OverviewBackgroundPathophysiologyEtiologyEpidemiologyPrognosisPatientEducationShowAllPresentationHistoryPhysicalExaminationAtypicalCatScratchDiseaseImmunocompromisedPatientsShowAllDDxWorkupApproachConsiderationsSerologicTestingBiopsySkinTestingComputedTomographyHistologicFindingsShowAllTreatmentApproachConsiderationsAntibioticTreatmentTreatmentofLymphNodeSuppurationFollow-upDeterrence/PreventionConsultationsShowAllMedicationMedicationSummaryAntibioticsShowAllQuestions&AnswersMediaGalleryTablesReferencesOverviewBackgroundCatscratchdisease(CSD),alsoknownascatscratchfeverorsubacuteregionallymphadenitis,isabacterialinfectionaffectinglymphnodesthatdrainthesitesofinoculation.Bartonellahenselae,agram-negativerod,isconsideredtheprincipaletiologicagent.[1,2]CSDisoneofthemostcommoncausesofchroniclymphadenopathyinchildrenandadolescents.PatientswithCSDusuallyhaveahistoryofsustainingascratchorbitefromacat(typicallyakitten).Theinitialsymptomi