TY -的A2 Saadeh君士坦丁AU - Abd El Baky又非盟-托马斯,理查德·d . AU - Kuechle约瑟夫AU -阿卜杜勒-阿齐兹,Rabheh PY - 2020 DA - 2020/08/28 TI -髋臼骨样骨瘤模仿青少年特发性关节炎和慢性复发性多病灶的骨髓炎SP - 8810735六世- 2020 AB -骨样骨瘤(OO)是一种良性骨肿瘤,通常10到35岁。股骨和胫骨干骨后端和骨干的典型的位置。诊断通常是直接在图片显示了射线可透过的病灶反应性硬化包围。然而,诊断更为困难当它发生在非典型位置与非特异性和误导性的外观图片。OO可能模仿青少年特发性关节炎(JIA),骨感染或恶性肿瘤。我们提出一个14岁的男性患者的受测者历史的左髋部疼痛。他的痛苦是打曲棍球和曲棍球,早上和晚上有时叫醒他。他的考试是重要的疼痛与弯曲和外部旋转的左髋部和温和的限制的外部旋转。正常出完整的血细胞计数,红细胞沉降率和c反应蛋白。左髋关节x射线是毋庸置疑。 Left hip MR arthrogram showed marked edema of the medial and posterior walls of the left acetabulum. CT-guided biopsy of the left acetabulum showed unremarkable flow cytometry and chronic inflammatory component raising concern about chronic recurrent multifocal osteomyelitis (CRMO). Bone scan revealed focal increased uptake in the left acetabulum and no additional abnormality. Repeat MRI with intravenous contrast showed a left hip effusion, focal synovial enhancement in the medial left hip, and acetabula edema. The patient failed treatment for presumed JIA and CRMO with nonsteroidal anti-inflammatory drugs (NSAIDs), steroids, methotrexate, and adalimumab. CT scan of the left hip was performed for further evaluation of the bone and showed 11 × 6 mm low attenuation focus with subtle internal nidus in the posteromedial aspect of the acetabular rim, suggestive of intra-articular OO. Radiofrequency ablation was performed with no complications, and the left hip pain improved. The atypical location resulted in delay of diagnosis for 12 months after presentation. We highlight the diagnostic pitfalls observed in atypical OO locations and the difficulties this creates with making the diagnosis. OO mimicking JIA has previously been described. We submit CRMO as another differential diagnosis which may be mimicked and demonstrate the vital role of CT scan in the diagnosis. SN - 2090-6889 UR - https://doi.org/10.1155/2020/8810735 DO - 10.1155/2020/8810735 JF - Case Reports in Rheumatology PB - Hindawi KW - ER -