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Synovitis, Pigmented Villonodular
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Definition
: Outgrowths of synovial membrane composed of villi and fibrous nodules characterized histologically by hemosiderin- and lipid-containing macrophages and multinucleated giant cells. It usually occurs in the knee.
usually in the knee
Other names
Villonodular Synovitis, Pigmented; Villonodular Synovitides, Pigmented; Synovitides, Pigmented Villonodular; Pigmented Villonodular Synovitis; Pigmented Villonodular Synovitides