股骨颈疝窝的CT表现

CT Features of Herniation Pits of the Femoral Neck

目的:探讨股骨颈疝窝的CT表现。材料与方法:搜集39例经病理证实或具有典型影像学征象的股骨颈疝窝影像学资料。结果:39例股骨颈疝窝中,双侧7例、右侧18例和左侧14例。病灶均位于股骨头基底和股骨颈近段前外侧皮质下,呈圆形或类圆形,最大径3～28mm。CT表现为有硬化环的低密度灶,并伴前方皮质与病灶相通的裂隙样缺损。结论:股骨颈疝窝具有特殊的CT表现,CT可依据病变典型部位、形态确诊股骨颈疝窝。

Purpose:To evaluate imaging appearances of herniation pit of the femoral neck on CT.Materials and Methods:The CT findings of 39 patients with herniation pit of the femoral neck were analyzed retrospectively.Results:In the 39 patients with herniation pit of the femoral neck,the bilateral hips were affected in the 7 patients,the right hips in the 18 patients,the left hips in the 14 patients.The diameter of the lesions ranged from 3~28mm.All located in the femoral head and neck near the basement of the anterior lateral cortex of the femur.CT scanning showed a low-density lesion surrounded by a sclerotic rim and a small adjacent cortical defect.Conclusion:Herniation pits of the femoral neck have imaging appearance on CT.On the basis of its characteristic location and morphologic findings allow identification of herniation pits of the femoral neck by CT.