title: Localized tenosynovial giant cell tumor in both knee joints.
abstract: Tenosynovial giant cell tumor, previously called pigmented villonodular synovitis (PVNS), is a rare benign neoplastic process that may involve the synovium of the joint. The disorder is usually monoarticular and only a few cases have been reported on polyarticular involvement. Herein, we present a case of localized intra-articular tenosynovial giant cell tumor in a 29-year-old man involving both knee joints with a description of the MR imaging and histological findings.
authors.affiliation: Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Hyun Su
authors.initials: HS
authors.lastname: Kim
authors.forename: Jong Won
authors.initials: JW
authors.lastname: Kwon
authors.forename: Jin Hwan
authors.initials: JH
authors.lastname: Ahn
authors.forename: Moon Jong
authors.initials: MJ
authors.lastname: Chang
authors.forename: Eun Yoon
authors.initials: EY
authors.lastname: Cho
mesh_terms: D000328:Adult; D002358:Cartilage, Articular / Q000473:pathology*; D005870:Giant Cell Tumors / Q000473:pathology*; D006801:Humans; D007719:Knee Joint / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D012983:Soft Tissue Neoplasms / Q000473:pathology*