pigmented vil·lo·nod·u·lar synovitis (v l  -n j  -lr)n. Diffuse outgrowths of the synovial membrane of a joint, usually the knee. |
pigmented villonodular synovitis
[pig′məntid]
a disease of the joints characterized by fingerlike proliferative growths of synovial tissue, with hemosiderin deposition within the synovial tissue. The cause of the disorder is unknown.
pigmented
colored by deposit of pigment.
pigmented villonodular synovitis
a disease of humans characterized by the development of nodular and villous synovial proliferations; similar lesions are reported in horses and dogs; pigmentation results from deposition of blood pigments.
pigmented villonodular synovitis
Orthopedics A lesion of knee–less commonly, ankle, hip, shoulder of young adults Management Excision, re-excision DiffDx Fibrosarcoma, synovial sarcoma, incontinentia pigmenti
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