Kim Y, Kim G-T, Lee S-G, Lee H-N, Kang J, Ko T Y
Division of Rheumatology, Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea (Republic of).
Division of Rheumatology, Department of Internal Medicine, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea (Republic of).
Z Rheumatol. 2020 May;79(4):389-392. doi: 10.1007/s00393-020-00763-w.
Rheumatoid arthritis (RA) is an inflammatory polyarthritis that typically affects the small joints but can also involve the manubriosternal joint (MSJ). Although cases of MSJ involvement in RA are rare, such cases present with chest pain, a mass-like lesion, and subluxation. These cases can also be diagnosed incidentally, while patients are asymptomatic. It is important to differentiate RA involving the MSJ from other diseases such as ankylosing spondylitis that can affect the MSJ. Several cases of RA affecting the MSJ have been reported in Western countries, but none have been reported to date in Asia, especially with disease activity of RA. Here, we report a case of RA in the MSJ that was confirmed by imaging and histological investigation in a middle-aged Asian woman.
类风湿性关节炎（RA）是一种炎症性多关节炎，通常影响小关节，但也可能累及胸柄关节（MSJ）。虽然类风湿性关节炎累及胸柄关节的病例很少见，但此类病例会出现胸痛、肿块样病变和半脱位。这些病例也可能在患者无症状时被偶然诊断出来。将累及胸柄关节的类风湿性关节炎与其他可能影响胸柄关节的疾病（如强直性脊柱炎）区分开来很重要。西方国家已报道了几例累及胸柄关节的类风湿性关节炎病例，但迄今为止亚洲尚无相关报道，尤其是关于类风湿性关节炎的疾病活动情况。在此，我们报告一例胸柄关节类风湿性关节炎病例，该病例经影像学和组织学检查确诊，患者为一名中年亚洲女性。
