摘要
目的:探讨股骨近端骨样骨瘤影像学表现及其诊断价值。方法:回顾性分析病理证实的6例股骨近端骨样骨瘤患者临床及影像学资料。结果:6例均为单发病灶,其中1例位于股骨头,3例位于股骨颈,1例位于小转子,1例位于转子下。X线平片4例可见圆形或卵圆形瘤巢影,周围有不同程度骨质硬化,其中3例可见点状钙化。CT检查4例均显示类圆形透亮瘤巢影,周围伴骨质增生硬化,其中2例瘤巢内见斑点状钙化。MRI检查2例,均显示瘤巢,T1WI呈低信号,T2WI呈稍高信号,其中1例瘤巢中央可见点状钙化,于T1WI及T2WI均呈低信号。结论:股骨近端骨样骨瘤与其他部位骨样骨瘤影像学表现相似,X线平片结合CT可对其作出正确诊断,可避免不必要穿刺活检或MRI检查。
Objective To study the imaging features of osteoid osteoma in proximal femur and their diagnostic value.Methods Six cases of pathologically proved osteoid osteoma in proximal femur were analyzed the clinical and imaging features.Results Six cases were all found single lesion,in which lesion was located in the femoral head in one case,in the femoral neck in three cases,in lesser trochante in one case and in subtrochanter in one case.The X-ray manifestations of osteoid osteoma revealed a circular or oval nidus with different bone sclerosis around the nidus,in which 3 cases were found punctate calcification.Four cases receiving CT scanning showed nidus and peritumoral reactive osteosclerosis.Focal intralesional calcifications in the center were found in 2 cases.Both 2 cases receiving MRI showed nidus with hypointense on T1WI and slight hyperintense on T2WI.There was punctate calcification with hypointense on T1WI and hypointense on T2WI in the center of nidus.Conclusion The osteoid osteoma in proximal femur is similar to that in other sites.CT combined with X-ray can make a correct diagnosis and avoid unnecessary biopsy and expensive MRI examination.
出处
《中华实用诊断与治疗杂志》
2010年第4期340-342,共3页
Journal of Chinese Practical Diagnosis and Therapy
