Matsumoto Shusuke, Arata Jun, Yamashita Teruyo
Department of Plastic and Reconstructive Surgery, Shiga University of Medical Science, Shiga, Japan.
J Plast Reconstr Surg. 2024 Oct 25;4(3):156-159. doi: 10.53045/jprs.2024-0005. eCollection 2025 Jul 27.
A subcutaneous rheumatoid nodule is a superficial soft tissue lesion that generally affects areas of frequent mechanical contact, such as the extensor aspect of the extremities, occiput, and sacrum. Rheumatoid nodules of the foot are rare, occurring in only 1% of cases. Herein, we present a case of a rheumatoid nodule on the plantar side of the left hallux in a 65-year-old woman with rheumatoid arthritis. The tumor was a 15 × 10 mm, dome-shaped, nontender, elastic hard mass in the plantar aspect of the left hallux. The discovery of rheumatoid nodules provides crucial information for the treatment and management of rheumatoid arthritis. Giant cell tumors may cause symptoms similar to those of rheumatoid nodules. Furthermore, difficulties are associated with differentiating rheumatoid nodules from giant cell tumors using imaging modalities. Therefore, the identification of these tumors requires careful observation.
皮下类风湿结节是一种浅表软组织病变，通常累及频繁发生机械接触的部位，如四肢伸侧、枕部和骶部。足部类风湿结节罕见，仅见于1%的病例。在此，我们报告一例65岁类风湿关节炎女性患者，其左拇趾跖侧出现类风湿结节。肿瘤为位于左拇趾跖侧的一个15×10毫米、圆顶状、无压痛、质地硬如橡皮的肿块。类风湿结节的发现为类风湿关节炎的治疗和管理提供了关键信息。巨细胞瘤可能引起与类风湿结节相似的症状。此外，使用影像学方法区分类风湿结节与巨细胞瘤存在困难。因此，这些肿瘤的鉴别需要仔细观察。
