大量骨质溶解症的影像学表现(附四例报告)

Imaging diagnosis of massive osteolysis (areportof 4cases)

目的 探讨大量骨质溶解症的影像学表现及其应用价值。方法 4例患者 ,均经X线平片检查 ,其中CT检查 2例、MRI检查 1例。结果 (1)单发 3例 ,多发 1例。 (2 )平片示管状骨病变残端呈“笔尖”状 2例 ;扁骨病变均表现为“骨缺损”或“骨消失”。 (3)CT示扁骨缺损边缘呈“尖角”状1例 ;肋骨变平 ,表面不规则 ,以及皮质及其下方缺损 1例。合并乳縻胸 1例。 (4 )MRI示正常骨髓信号消失 ,T1WI病灶呈与肌肉信号相近的低信号 ;T2 WI呈明显高信号 1例。结论 平片是诊断大量骨质溶解症的基本方法 。

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 .