Spine Infection or Inflammation

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1、SpineInfection/InflammationJeffreyDeSanto,MD*,JeffreyS.Ross,MDKEYWORDSSpineInfectionInflammationMRimagingThisarticlediscussestheimagingofinfectiousandbecomelessprominentbyage7yearsandotherinflammatoryconditionsthataffectthespinalregressbyage15years,whentheadultconfigura-cord,spi

2、nalcolumn,intraduralspinalnerveroots,tionperipheralperiostealarteriesdevelop.Intra-andspinalmeningeswithemphasisonmagneticosseousanastomoseshavecompletelyinvolutedresonance(MR)imaging.Inflammatorylesionsofinadultlife.2e4Thevascularsupplyofthediscsthespineareoftenindistinguishableoni

3、magingalsochangessignificantlywithage.Theinterverte-andevenonpathologicexamination.However,braldiscsofinfantsandchildrenhaveamuchinfectiouscausesaretreatablesoitisimportantmoreprofusevascularsupplythanadults.Thefortheradiologisttomakethediagnosis.Thecapillarynetworkatthevertebralmar

4、ginsadjacentmostcommoninflammatoryandinfectiouscondi-tothediscsisdenserininfantsandchildrenthanintionsaffectingtheanatomiccompartmentsoftheadults.Severalvesselspenetratedeeplyintothespinearedescribed,followinganexternaltodiscsofinfants,whereasinmostadolescentsinternalanatomicapproac

5、h.Subsequently,andinalladultsnosuchvesselsarepresent.Inseveralinfectiouspathogenicagentsaredis-contrasttothevertebralmargins,thefreemarginscussedindividuallyastheyaffectthespinalofthediscsarealmostequallyrichlyvascularizedcolumnanditscontents.inchildrenandadults.5Themostacceptedhypo

6、thesisisthatvertebralosteomyelitisresultsfromhematogenousspreadINFECTIOUSSPONDYLODISCITISfromaninfectedmicroembolusinthearterialInfectiousspondylitiscanbecausedbybacterial,systembecominglodgedinoneofthemetaphy-fungal,orparasiticorganisms.Vertebralbodiessealarteriesresultingininfarct

7、ionandsubsequentinfection.6Osteomyelitisismostfrequentattheandintervertebraldiscsaremostfrequentlyaffectedwithprimaryorsecondaryinvolvementendplatesbecauseofthegreaternumberofarteriesinthislocation.4Themerepresenceofoftheepiduralspace,posteriorelements,andpar-aspinalsofttissues.bact

8、eriaintheboneisinsu