Localized Nodular Synovitis of the Knee: MR Imaging Appearance and Clinical Correlates in 21 Patients

Abstract

Localized nodular synovitis of the knee predominantly involves the infrapatellar fat pad. It may produce symptoms related to mechanical derangement of the knee. Although there is no typical MR appearance for this lesion, many features help to differentiate it from pigmented villonodular synovitis.