影像診斷(imaging diagnosis)

影像診斷(imaging diagnosis)

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時(shí)間:2018-07-19

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1、影像診斷(imagingdiagnosis)Iftheepiphysisappearsdelayed,thedensityislowandtheedgemodulusislowThecalcificationbandofthemetaphysisisirregular,vague,thinninganddisappearing.Themiddlepartofepiphysisistortuousandsunken,andcupshaped,Themarginisirregularandbrushlike,andthedi

2、stancebetweenepiphysisandepiphysisiswidened.Bonelikechangesintheepiphysisofthemetaphysis.AnteriorribWidecupmouth.Commonbendingdeformationoflongbonebearingatthesametime.(Oleg,Xleg,etc.),afewpatientscanbegreenBranchfractureX-rayappearanceofthehealing:thetemporaryca

3、lcificationbandreappeared,andthecupmouthdepressionandbrushshapechangedanddisappeared.MetaphysisSpacingreturnedtonormal.Bonedensityincreasedandcorticalbonethickened.Epiphysealenlargement,increaseddensity,aslongasbonedeformationIn.4.Thedifferentialdiagnosisofbenign

4、andmalignantbonetumorsfromX-rayfeaturesBenign:Whetherornotmetastasis:nometastasisGrowth:slowgrowth,noinvasionofadjacenttissues,butcancausecompressiondamageLocalbonechanges:expansivebonedestruction,clearboundarieswiththenormalbone,sharpedge,thinningofcorticalbone,

5、expansioncanprotectHoldingitscontinuityPeriostealhyperplasia:thereisnoperiostealhyperplasia,pathologicalfracturecanhaveasmallamountofperiostealhyperplasia,andperiostealnewboneisnotdestroyedSurroundingsofttissuechanges:noswellingormassshadow,suchaslumps,clearedges

6、Angiography:normalvasculardifferentiation,tumorcompressionofthebloodvessels,sothatthepull,displacementMalignant:Thereisnometastasis:thereismetastasisGrowth:rapidgrowth,easyinvasionandadjacenttissuesandorgansLocalbonechanges:infiltrationofbonedestruction,lesionsan

7、dnormalboneboundariesblurred,marginal,involvingthebonecortex,resultingIrregulardestructionanddefectmayleadtotumorboneformationPeriostealhyperplasia:therearedifferentformsofperiostealhyperplasia,andcanbedamagedbytumorinvasionPeripheralsofttissuechanges:softtissuef

8、ormedintothemass,andtheboundaryofthesurroundingtissueisunclearAngiography:thetumorvesselsweremanyanddisorderly,tumorstainingandarteriovenousfistula,butalsovisi

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