Harman, M.Arslan, H.Doǧan, A.Özen, S.Ipeksoy, Ü.2025-05-102025-05-1020031571-467510.1016/S1571-4675(03)00075-02-s2.0-23844533584https://doi.org/10.1016/S1571-4675(03)00075-0https://hdl.handle.net/20.500.14720/6372We report a case of pigmented villonodular synovitis (PVNS) within Baker's cyst in a 55-year-old man who admitted to hospital with palpable popliteal mass. The mass was examined with ultrasonography (US), magnetic resonance imaging (MRI) and magnetic resonance arthrography (MRA). MRA was the best modality in the demonstration of the connection of the lesion with the joint space. In this study, we emphasized on the importance of the MRA in the PVNS within Baker's cyst. To the best our knowledge, this is the first report that illustrates the MRA characteristics of a PVNS within Baker's cyst. © 2002 Elsevier Science Ireland Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessBaker'S CystMagnetic Resonance ArthrographyPigmented Villonodular SynovitisArticle471N/AN/A2932