Journal of Korean Orthopaedic Research Society  2015;18(1):38-42

Localized Pigmented Villonodular Synovitis in an Unusual Location in the Knee: A Case Report.

Sang Jun SHIM 1 ; Ho Jong RA ; Young Joon CHOI ; Jae Kwang HWANG ; Dae Woon EOM ; Hui Dong KANG

Affiliations

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Keywords

Localized pigmented villonodular synovitis; Knee; Limitation of range of motion

Country

Republic of Korea

Language

Korean

Abstract

Localized pigmented villonodular synovitis (LPVNS) is a rare lesion that can affect any joint, although it is most frequently found in the knee. When LPVNS affects the knee, it is usually a single mass of pedunculated appearance. We present a LPVNS occurred from the junction of the anterior horn of the lateral meniscus and the joint capsule in the knee. It detached and then moved at an unusual location, which caused pain, limitation of knee flexion and locking.