Erythema marginatum is a type of erythema involving pink rings on the torso and inner surfaces of the limbs which come and go for as long as several months.ErythemamarginatumFromWikipedia,thefreeencyclopediaJumptonavigationJumptosearchMedicalconditionErythemamarginatumPaintingofalegwitherythemamarginatumSpecialtyDermatology Erythemamarginatumisatypeoferythema(rednessoftheskinormucousmembranes)involvingpinkringsonthetorsoandinnersurfacesofthelimbswhichcomeandgoforaslongasseveralmonths.[1]Itisfoundprimarilyonextensorsurfaces.[2]Anassociationwithbradykininhasbeenproposedinthecaseofhereditaryangioedema.[3]Contents1Presentation1.1Associatedconditions2Diagnosis2.1Types3Treatment4References5ExternallinksPresentation[edit]Theringsarebarelyraisedandarenon-itchy.Thefaceisgenerallyspared.[citationneeded]Associatedconditions[edit]Itoccursinlessthan5%ofpatientswithrheumaticfever,butisconsideredamajorJonescriterionwhenitdoesoccur.Thefourothermajorcriteriaincludecarditis,polyarthritis,Sydenham'schorea,andsubcutaneousnodules.Inthiscase,itisoftenassociatedwithGroupAstreptococcalinfection,otherwiseknownasStreptococcuspyogenesinfection,whichcanbedetectedwithanASOtiter.[citationneeded]Itisanearlyfeatureofrheumaticfeverandnotpathognomonicofit.[4]Itmaybeassociatedwithmildmyocarditis(inflammationofheartmuscle).Itisalsoseeninconditionslikeallergicdrugreactions,sepsisandglomerulonephritis.[4]Itoftenoccursasaharbingerofattacksinhereditaryangioedema.Inthiscaseitmayoccurseveralhoursoruptoadaybeforeanattack.[citationneeded]Diagnosis[edit]Types[edit]Somesourcesdistinguishbetweenthefollowing:[citationneeded]"Erythemamarginatumrheumaticum""Erythemamarginatumperstans"Treatment[edit]Thissectionneedsexpansion.Youcanhelpbyaddingtoit.(January2020)Erythemamarginatumcanbetreatedwithhydrocortisoneandadrenocorticotropchormone(ACTH).[5]References[edit]^Rapini,RonaldP.;Bolognia,JeanL.;Jorizzo,JosephL.(2007).Dermatology:2-VolumeSet.St.Louis:Mosby.p. 281.ISBN 978-1-4160-2999-1.^"erythemamarginatum"atDorland'sM