pigmented villonodular synovitis


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pig·men·ted vil·lo·nod·u·lar syn·o·vi·tis

diffuse outgrowths of synovial membrane of a joint, usually the knee, composed of synovial villi and fibrous nodules infiltrated by hemosiderin- and lipid-containing macrophages and multinucleated giant cells; the condition may be inflammatory, although recurrence is likely to follow incomplete removal.

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 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

pig·men·ted vil·lo·nod·u·lar sy·no·vi·tis

(pig-ment'ed vil'ō-nod'yū-lăr sin'ō-vī'tis)
Diffuse outgrowths of synovial membrane of a joint, usually the knee, composed of synovial villi and fibrous nodules infiltrated by hemosiderin- and lipid-containing macrophages and multinucleated giant cells; the condition may be inflammatory, although recurrence is likely to follow incomplete removal.

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.
References in periodicals archive ?
Treatment of advanced primary and recurrent diffuse pigmented villonodular synovitis of the knee.
Pigmented villonodular synovitis is a rare but locally invasive benign disease with significant potential for articular severe morbidity.
The report reviews pipeline therapeutics for Pigmented Villonodular Synovitis by companies and universities/research institutes based on information derived from company and industry-specific sources
Clinical results of open synovectomy for treatment of diffuse pigmented villonodular synovitis of the knee: case series and review of literature.
Pigmented villonodular synovitis and related lesions: the spectrum of imaging findings.
Pigmented villonodular synovitis usually affects large areas of the synovial surface.
Reports of pigmented villonodular synovitis in the temporomandibular joint are rare.
One case of pigmented villonodular synovitis with FTT was interpreted as Prompt FTT.
However, the cause remained unclear, as enhanced magnetic resonance imaging and thallium scintigraphy did not reveal the presence of any tumorous lesions, such as pigmented villonodular synovitis or hemangioma.
Pigmented Villonodular Synovitis (PVNS) is a benign tissue proliferation which presents as a borderline case between a reactive and a neoplastic process and emanates from the tendosynovial layers, joint capsule or the synovial bursa.
She mentioned that she underwent right knee operation due to pigmented villonodular synovitis three years ago.