Abstract. Fregoli syndrome (FS) is commonly associated with verbal threats and aggressive behavior. We present a case of Fregoli syndrome leading to an assault ...CaseReportsinPsychiatry+JournalMenuPDFJournaloverviewForauthorsForreviewersForeditorsTableofContentsSubmitCaseReportsinPsychiatry/2011/ArticleArticleSectionsOnthispageAbstractIntroductionDiscussionReferencesCopyrightCaseReport|OpenAccessVolume2011|ArticleID351824|https://doi.org/10.1155/2011/351824NaumanAshraf,DanielAntonius,ArthurSinkman,KarineKleinhaus,DoloresMalaspina,"FregoliSyndrome:AnUnderrecognizedRiskFactorforAggressioninTreatmentSettings",CaseReportsinPsychiatry,vol.2011,ArticleID351824,3pages,2011.https://doi.org/10.1155/2011/351824ShowcitationFregoliSyndrome:AnUnderrecognizedRiskFactorforAggressioninTreatmentSettingsNaumanAshraf,1DanielAntonius,1ArthurSinkman,1KarineKleinhaus,1andDoloresMalaspina11DepartmentofPsychiatry,NewYorkUniversitySchoolofMedicine,NewYork,NY10016,USAShowmoreAcademicEditor:H.SpiesslReceived09Jun2011Accepted28Jun2011Published14Jul2011Fregolisyndrome(FS)iscommonlyassociatedwithverbalthreatsandaggressivebehavior.WepresentacaseofFregolisyndromeleadingtoanassault.WediscussthepossibleunderdiagnosisofFS,associatedriskforaggression,andstrategiestoreducethatrisk.1.IntroductionThedelusionalmisidentificationsyndromes(DMSs)includetheCapgrasdelusion,Fregolisyndrome,thesyndromeofIntermetamorphosis,andthesyndromeofSubjectiveDoubles.Thiscategoryofdelusionalsyndromesischaracterizedbyparanoiaandhostilitytowardsmisidentifiedobjects[1],withbehaviorsrangingfromverbalthreatstoseverephysicalinjuries.TheCapgrasdelusion,thebeliefthatpeoplehavebeenreplacedbyimpostors,hasbeenwidelydocumented[2,3],andthesepatientshavedisplayedassaultivebehavior,particularlytowardscloserelatives[1,4].LessknownisFregolisyndrome,thedelusionalbeliefthatasinglepersecutorismasqueradingasseveralotherpeople,whoseappearancesheorsheassumesatdifferenttimes(forfurtherreviewsee[5]).Inhospitalsettings,patientswithFregolisyndromeoft