Zagalioti Sofia-Chrysovalantou, Stavride Eliza, Bintoudi Antonia
General Practitioner, Papageorgiou Hospital, Thessaloniki, Greece.
Department of Radiology, Papageorgiou Hospital, Thessaloniki, Greece.
J Family Med Prim Care. 2020 Aug 25;9(8):4434-4436. doi: 10.4103/jfmpc.jfmpc_641_20. eCollection 2020 Aug.
Rheumatoid nodules (RNs) are the most common extraarticular manifestation in patients with rheumatoid arthritis, appearing in up to 30%. They are typically localized subcutaneously in pressure points or joints, such as the extensor surface of the elbow. But when they have atypical localizations, they provide a confusing differential diagnosis including the possibility of a malignancy. Herein, we report a 53-year-old female patient with known rheumatoid arthritis who presented with a painless mass in the right cubital fossa. The uncommon site and the presence of cortical disruption made us proceed to computed tomography-guided biopsy to exclude the presence of a malignancy. Biopsy established the RN diagnosis.
类风湿结节（RNs）是类风湿关节炎患者最常见的关节外表现，发生率高达30%。它们通常位于皮下的压力点或关节处，如肘部的伸肌表面。但当它们出现非典型定位时，会带来令人困惑的鉴别诊断，包括恶性肿瘤的可能性。在此，我们报告一名53岁已知类风湿关节炎的女性患者，其右侧肘窝出现无痛性肿块。该罕见部位及皮质破坏的存在促使我们进行计算机断层扫描引导下的活检以排除恶性肿瘤。活检确诊为类风湿结节。
