Torisu T, Nakamura Y, Kataoka M, Izumi H
Department of Orthopaedic Surgery, Medical College of Oita.
Ryumachi. 1990 Apr;30(2):85-9.
Intra-articular rheumatoid nodules found in 6 knee joints of 4 patients with rheumatoid arthritis were reported with histological findings. All patients were women, ranging in age from 32 to 61 years, with 6 to 41-year history of rheumatoid arthritis. The masses were exclusively in the anterolateral aspect of the joint. Snapping occurred when the joint was flexed by 20 degrees in four joints and by 60 degrees in two. The masses had the sizes of a thumb tip to index-finger tip, and were elastic and soft. Histologic examination of the masses revealed the typical formation of rheumatoid nodule in two joints. Myxomatous degeneration and granulation tissue consistent with rheumatoid arthritis were found in two joints. Perivascular fibrosis and myxomatous degeneration were mainly demonstrated in two joints which had developed masses two months before excision.
报告了4例类风湿性关节炎患者6个膝关节内发现的关节内类风湿结节及其组织学结果。所有患者均为女性，年龄在32至61岁之间，患类风湿性关节炎的病史为6至41年。肿块仅位于关节的前外侧。4个关节在屈曲20度时、2个关节在屈曲60度时出现弹响。肿块大小从拇指尖到食指尖，质地有弹性且柔软。对肿块进行组织学检查发现，2个关节有典型的类风湿结节形成。2个关节发现有符合类风湿性关节炎的黏液样变性和肉芽组织。在切除肿块前两个月出现肿块的2个关节中，主要表现为血管周围纤维化和黏液样变性。
