ODD), and conduct disorder (CD) are three of the most prevalent disruptive behavior ...CaseReportsinPsychiatry+JournalMenuPDFJournaloverviewForauthorsForreviewersForeditorsTableofContentsSubmitCaseReportsinPsychiatry/2012/ArticleArticleSectionsOnthispageAbstractIntroductionCase1DiscussionReferencesCopyrightCaseReport|OpenAccessVolume2012|ArticleID520689|https://doi.org/10.1155/2012/520689SayantiGhosh,MausumiSinha,"ADHD,ODD,andCD:DoTheyBelongtoaCommonPsychopathologicalSpectrum?ACaseSeries",CaseReportsinPsychiatry,vol.2012,ArticleID520689,4pages,2012.https://doi.org/10.1155/2012/520689ShowcitationADHD,ODD,andCD:DoTheyBelongtoaCommonPsychopathologicalSpectrum?ACaseSeriesSayantiGhosh1andMausumiSinha11DepartmentofPsychiatry,R.G.KarMedicalCollege,WestBengal,Kolkata700004,IndiaShowmoreAcademicEditor:F.OyebodeReceived10Aug2012Accepted16Sep2012Published11Oct2012PurposeofResearch.Numerousstudieshavereportedcomorbidities,overlappingsymptoms,andsharedriskfactorsamongcasesofattentiondeficithyperactivitydisorder(ADHD),oppositionaldefiantdisorder(ODD)andconductdisorder(CD).Wepresentthreeadolescentmalesaged13–16yearswithconductdisorderhavingpasthistoryofADHDandODD.PrincipalResult.Thesymptomprofileespeciallyindomainsofaggression,hostility,andemotionalityaswellasthemannerofprogressionfromADHDtoODDandCDintheabovecasesshowsasimilarpattern.Conclusion.Thesecommondevelopmentalpathwaysandoverlappingsymptomssuggestthepossibilityofacommonpsychopathologicalspectrumencompassingthethreeexternalizingdisorders.1.IntroductionAttentiondeficithyperactivitydisorder(ADHD),oppositionaldefiantdisorder(ODD),andconductdisorder(CD)arethreeofthemostprevalentdisruptivebehaviordisordersinchildhoodandadolescenceaffectingapproximately1%–15%ofallschoolagechildrenandconstitutingamajorproportionofreferralstomentalhealthclinics[1,2].Numerousstudieshavereportedcomorbiditiesamongthesedisordersbothinepidemiologicalandclinicalsamples[2–5]oftenmakingthemdifficulttoisolateandunderstandindividually.Inthefollowingcaserepor