Rare presentation of pigmented villonodular synovitis in the ankle joint: a case study

introduction: pigmented villonodular synovitis (PVNS) is an extraordinary lesion affecting the synovium of joints, tendon sheaths, or bursae, with only approximately 2.5% of instances involving the ankle. Previously idea to be a form of synovial malignancy, PVNS stays a disease with uncertain etiology. Treatment approaches for PVNS vary based on disease form. In localized PVNS, partial synovial capsulectomy (removal of a limited section of the capsule, including both synovial and fibrous layers) is usually adequate. However, in diffuse PVNS, irrespective of disease stage, total synovial capsulectomy is recommended as the initial step in treatment. Case report: In this case report, we provide a 17-years old female patient. with a 13-month history of innovative, deep-seated pain and swelling inside the anteromedial issue of the proper ankle. Radiological assessment, which includes MRI, cautioned pigmented villonodular synovitis (PVNS). Conclusion: For effective PVNS treatment, especially in rare sites like the ankle, complete excision with radical synovectomy is essential. Long-term success relies on precise removal, though diffuse PVNS may require multiple surgeries. The extent of tissue involvement and bone impact are critical, highlighting the need for skilled surgical expertise.

pigmented villonodular synovitis, Ankle joint synovitis, Synovectomy treatment, Diffuse and localized PVNS