股骨颈疝窝的影像学表现及诊断价值

目的探讨CT和MR I在股骨颈疝窝的影像学表现及诊断价值。方法回顾性分析总结经临床影像学诊断的10例股骨颈疝窝的影像学表现,所有病例均行X线平片和CT检查,其中2例行MR I检查。结果10例股骨颈疝窝均为单侧单发病灶,10例病灶中X线平片仅显示8例,表现为股骨颈外上侧的类圆形透亮区或硬化环。CT上表现为股骨颈前方皮质下的类圆形骨质缺损区,内为密度均匀的软组织密度,边缘清楚伴有硬化缘。MR I上表现为均匀长T1和长T2液体信号,灶周骨髓信号无异常。结论X线平片对股骨颈疝窝具有初步诊断价值,CT具有确诊价值,MR I具有辅助诊断价值。

Imaging Manifestation and Diagnostic Value in Herniation Pit of Femoral Neck

Objective To study imaging features and diagnostic value in herniation pit of femoral neck.Methods Imaging findings of 10 patients with herniation pits of femoral neck diagnosed by clinical imaging were retrospectively analyzed.All cases were examined by radiography and CT,and 2 cases by MRI.Results 10 herniation pits of the femoral neck were solitary lesions on CT,while only 8 lesions were displayed on X-ray film.On X-ray film,8 lesions showed a round radiolucency with a thin clear sclerotic rim or simple sclerotic loop.On CT images,there were round defects under anterior cortical bone of the femoral neck which showed a well-defined lesion of fluid attenuation surrounded by thin clear sclerotic rim.On MRI images,2 lesions showed uniformly long T_1 and long T_2 fluid signal intensity.Conclusion In herniation pit of femoral neck,X-ray film is a good choice for primary diagnosis,CT scaning can make accurate diagnosis and MRI scaning is helpful to diagnosis.