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Orthop Rev. 1988 Jan;17(1):59-63.

Pigmented villonodular synovitis presenting as a large lateral knee mass. Case report and review of the literature.

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1
Dept. of Surgery, VA Medical Center, Des Moines, Iowa.

Abstract

Pigmented villonodular synovitis is characterized by synovial villonodular lesions with hemosiderin pigmentation and a stromal infiltrate of histiocytes. Analogous lesions may occur in joints, bursae, and tendon sheaths. Although the etiology and natural history of pigmented villonodular synovitis remain unknown, it should be considered a benign entity. It usually presents as either diffuse monoarticular involvement with chronic pain and swelling, or a more localized nodular lesion, typically involving the fingers or knees. Although treatment involves excision of the involved tissue, due to its benign behavior, radical surgical procedures are not indicated. A case report of a large, extra-articular mass is described, with histologic and clinical changes consistent with localized PVS.

PMID:
3050804
[Indexed for MEDLINE]
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