Case report: rheumatoid arthritis occurring during observation after surgery for localized pigmented villonodular synovitis
Isao Hirose1 , Yujiro Mori2 and Akihiko Fujimoto1
(1) Department of Orthopaedic Surgery, Showa University Fujigaoka Rehabilitation Hospital, 2-1-1 Fujigaoka, Aoba-ku, Yokohama, 227-8518, Japan
(2) Department of Orthopaedic Surgery, Showa University Fujigaoka Hospital, Yokohama, Japan
Received: 25 September 2002 Accepted: 23 January 2003
In the rare case presented here, arthroscopic resection was performed after a diagnosis of localized pigmented villonodular synovitis (LPVS) of the knee, but the disorder recurred after about 1 year as the diffuse form, and synovectomy was performed through a medial parapatella incision. Subsequently, rheumatoid arthritis (RA) occurred during the postoperative observation period. The course of this case is interesting because of the combination of the two diseases. In cases of PVS, the possibility of RA should always be considered.
