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Diffuse-type giant cell tumor: Pigmented villonodular synovitis of patellar fat pad
Erdem Degirmenci1, Abdullah Alper Sahin2, Yunus Emre Bulum1, Mehmet Gamsizkan3, Zafer Orhan1
1 Department of Orthopaedic and Traumatology, Faculty of Medicine, Duzce University, Duzce, Turkey 2 Department of Orthopaedic and Traumatology, Faculty of Medicine, Ordu University, Ordu, Turkey 3 Department of Pathology, Faculty of Medicine, Duzce University, Duzce, Turkey
Correspondence Address:
Erdem Degirmenci, Department of Orthopaedic and Traumatology, Faculty of Medicine, Duzce University, Duzce Turkey
 Source of Support: None, Conflict of Interest: None DOI: 10.4103/jcrt.JCRT_387_19
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Pigmented villonodular synovitis (PVNS) is a rare, relatively benign intra-articular lesion characterized by slowly progressing proliferation of the synovial tissue. It is most commonly observed in the knee joint. Localized and diffuse types are two types of PVNS depending on the synovial involvement. Arthroscopic and excisional resections are recommended as the treatment methods for the PVNS. Radiotherapy or chemotherapy can be adjuvant therapeutic options for the widespread masses. In this study, we presented a case of diffuse PVNS originating from the patellar fat pad.
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