Department of Radiology, Gulhane Military Medical Academy, Gn. Tevfik Saglam Cad. 06018, Etlik, Ankara, Turkey,
Jpn J Radiol. 2013 Sep;31(9):627-32. doi: 10.1007/s11604-013-0214-8. Epub 2013 May 21.
Variable clinical and radiological findings for intra-articular osteoid osteoma (OO) of the hip joint make its diagnosis difficult. Because radiographs commonly do not identify the nidus, MR imaging becomes the second line of study. However, because the appearance varies, findings on MR images can be confusing. We found "collar type osteophyte" of the femur i.e. an osteophyte rim around the femoral neck, to be a conspicuous finding of intra-articular OO. Here, this feature will be emphasized and intra-articular OOs will be discussed, with a review of the literature.
髋关节内骨样骨瘤（OO）的临床表现和影像学表现多变，导致其诊断困难。由于 X 线平片通常无法识别病灶，磁共振成像（MRI）成为二线研究方法。然而，由于表现多样，MRI 上的表现可能会令人困惑。我们发现股骨的“领圈样骨赘”，即股骨颈周围的骨赘边缘，是髋关节内 OO 的一个显著表现。在此，将重点强调这一特征，并对髋关节内 OO 进行讨论，同时复习文献。
