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1、MusculoskeletalImaging•PictorialEssayRiosetal.MRIoftheAnkleandHindfootMusculoskeletalImagingPictorialEssayBoneMarrowEdemaPatternsintheAnkleandHindfoot:DistinguishingMRIFeaturesAdrianaMartinsRios1OBJECTIVE.ManydisordersproducesimilaroroverlappingpatternsofbonemarrowedemaZehavaSadkaRosenberg
2、2intheankle.Bonemarrowedemamaypresentinafewhindfootbonessimultaneouslyorinasin-JennyTeresaBencardino2glebone.ThepurposeofthispictorialessayistoprovideguidelinesbasedonclinicalhistoryandSilviaPérezRodrigo3specificMRIpatternsandlocationstoaccuratelyidentifythecauseofanklebonemarrowedema.Sara
3、GarcíaTheran4Wewillfirstfocusonbonemarrowedemaingeneraldiseasecategoriesinvolvingmultiplebones,suchasreactiveprocesses,trauma,neuroarthropathy,andarthritides.AdiscussionofbonemarrowRiosAM,RosenbergZS,BencardinoJT,edemainindividualbonesoftheankleandhindfootincludingthetibia,fibula,talus,and
4、calcane-RodrigoSP,TheranSGuswillfollow.Helpfulhintsforarrivingatthecorrectdiagnosiswillbeprovidedineachsection.CONCLUSION.Afterreviewofthisarticle,radiologistsshouldbeabletousetheirknowledgeofclinicalhistoryandspecificMRIpatternsandlocationstoaccuratelydistin-guishbetweenthevariouscausesof
5、bonemarrowedemaintheankleandhindfoot.heterm“bonemarrowedema”de-canoftenaidindifferentiatingtheseclinicalscribesnonspecific,ill-definedar-entitiesfromoneanother.Teasofhypointenseandhyperin-BonemarrowedemawithseveralfocioftensesignalonT1-weightedandhighsignalinmultipleankleandfootbones,fluid
6、-sensitivesequences,respectively[1,2].coined“highturnover,”iscommonlyseeninThecauseofbonemarrowedemaisunclearchildrenyoungerthan15years[3].Thecauseandmayincludefluid,hemorrhage,fibrosis,ofthisasymptomaticandself-limitedprocessandnecrosis.Variousdiseaseswithconfusinglyislikelymultifactorial
7、,reflectingresidualredKeywords:ankle,bonemarrowedema,foot,MRIsimilaroroverlappingMRIfeaturescancausemarrow,hyperemia,increasedboneremodel-ankleandhindfootbonemarrowedema.Thising,oralteredweightbearing(Fig.1).DOI:10.2214/AJR.10.5880pictorialessay,focusingonflui
