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류마티스관절염 환자의 무릎 관절에 발생한 색소성 융모결절성 활막염 1예

Pigmented Villonodular Synovitis Developing in the Knee of a Rheumatoid Arthritis Patient Mistaken as a Rheumatoid Arthritis Flare-Up

대한내과학회지 2019년 94권 1호 p.133 ~ 136
이상엽 ( Lee Sang-Yeob ) - 동아대학교병원 류마티스내과

이성원 ( Lee Sung-Won ) - 동아대학교병원 류마티스내과
정원태 ( Chung Won-Tae ) - 동아대학교병원 류마티스내과

Abstract


Pigmented villonodular synovitis is a benign tumor arising from synovial fibroblasts or histiocytes. There are diffuse and localized forms: the former involves the entire synovium and the latter consists of nodules, small tumefactions, or pedunculated masses. The knee is the joint most commonly affected and the clinical diagnosis is difficult, so initial misdiagnosis is common. We report a case of pigmented villonodular synovitis developing in the knee of rheumatoid arthritis (RA) patient, mistaken for an RA flare-up.

키워드

Knee pain; Pigmented villonodular synovitis; Rheumatoid arthritis
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