The pelled vellonodular synonvitis located as a cause of hemarthrosis in the knee

Abstract

Pigmented Vellonodular Synovitis (SVP) is a benign neoplasm with synovial proliferation and hemosiderin deposition, characterized by compromising large joints, especially the knee. The prevalence of this disease is between the third and fourth decade of life. The SVP was described by Chassignac in 1852 as a nodular lesion in the sheath of a flexor tendon of the hand.1,2 In 1864, its localized form in the knee was described. In 1914, Jaffe and colleagues divided this disease into Pigmented Vellonodular Synovitis (SVP), Pigmented Vellonodular Bursitis (SVNB) and Pigmented Vellonodular Tenosynovitis (TSVP). 2 Two clinical variants, the diffuse and localized form, are currently described.3