Imaging diagnosis of massive osteolysis (areportof 4cases) / 中华放射学杂志

ABSTRACT

Objective Toevaluatetheradiologicfindingsanditsclinicaluseinmassiveosteolysis (MOL) .Methods FourcasesofMOLwereretrospectivelyanalyzed .X rayexaminationwasperformedinfour, CTintwo ,andMRIinone .Results (1 )Singleskeletallesionwasdemonstratedinthreecases ,andmultiple lesionsinone .(2 )OnX ray ,tubebonelesionwasshowedastaperingintwo ,butbonedefectorbone disappearingwasfoundintheflatbonedisease .Onecasealsoassociatedwithchylothorax .(3)OnCT ,flatbone lesionhadataperingmargin ,riblesionswereshowedasflattenandirregularsurfacewithcorticalorsubcortical bonedefect.Surroundingsofttissueofskeletallesionswasatrophy .(4)NormalMRIsignalintensityofbone marrowdisappearedintwoskeletallesionsandhadalongT1andlongT2 signalintensitychanges .Conclusion X rayexaminationistheessentialmethodforMOL ,CTandMRIarecomplementaryone .