2004, Number s1
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ABSTRACTIntroduction. Pigmented villonodular synovitis is a proliferative disorder affecting the joints, tendon sheaths and bursas. The most affected joints are the knees, hips and fingers. According to literature reviews, the shoulders are less affected. Material and methods. In this paper, we are reporting a case found on the glenohumeral joint, in a 77 year old female patient. She was also suffering from rheumatoid arthritis. Her clinical chart was characterized by profuse joint effusion. She underwent shoulder arthroscopy by biopsies and the histopathological diagnosis of diffuse pigmented villonodular synovitis was confirmed. Discussion. Given the rareness of occurrence in the shoulder, it is difficult to define the clinical findings and diagnostic support. However, our case, like nearly all those reported so far, shares a slow clinical course, general and non specific pain in the shoulder, increased volume of the joint, and region asymmetry. In all cases, anatomopathological findings are those showing long villi, extending to the peripheral osteochondral joint into the joint with a brownish color, sometimes bloody, which microscopically describes a proliferative synovia, fibroblasts or primitive mesenchymatous cells which, eventually provide a particular diagnosis.
Jaffe CC, Lichtensteln L, Sutro CJ: Pigmented villonodular synovitis, bursitis and tenosynovitis. A discussion of the synovial and bursal equivalents of the tenosynovial lesion commonly denoted as xanthanoma, xanthogranuloma, giant cell tumor or myeloplaxoma of the tendon sheath, with some considerations of this tendon sheath lesion itself. Arch Pathol 1945; 31: 731-765.