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股骨颈滑膜疝的影像学表现

Journal of Medical Imaging(2011)

Cited 23|Views30
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Abstract
目的:探讨股骨颈滑膜疝的影像学表现和发病机制。方法:搜集37例具有典型影像学征象的股骨颈滑膜疝影像学资料。全部病例均行髋关节X线平片检查、CT及MR检查。结果:37例共42个病灶,均位于股骨头基底和股骨颈前外侧皮质下,最大径线通常<10mm,可呈圆形或卵圆形。X线平片上表现为伴清晰薄层硬化缘的透亮区,CT上表现为圆形或半圆形边缘锐利的、薄层硬化缘的骨质缺损区,并在病灶或上下相邻层面上前方皮质显示与病灶相通的局部裂隙样缺损。MR I上病灶可呈3种异常信号。结论:股骨颈滑膜疝位于股骨头基底和股骨颈近段前部皮质下,呈圆形或半圆形、多伴有清晰锐利的薄层硬化缘。局部皮质与病灶相连的裂隙样缺损,是诊断股骨颈滑膜疝较为特异的征象。
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Key words
Herniation,Magnetic resonance imaging,X-ray computed,Tomography,Femoral neck
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