Combined Arthroscopic Synovectomy and Adjuvant Rhenium-186 Radiosynovectomy for Diffuse PVNS of Shoulder: A Case Report

Diffuse pigmented villonodular synovitis (PVNS) of the shoulder is a rare condition. This case report presents the diagnosis and treatment of diffuse PVNS in the shoulder of a 20-year-old female patient. The patient underwent arthroscopic synovectomy followed by adjuvant intra-articular Rhenium-186 radiosynovectomy. At one-year follow-up, she exhibited full recovery with no clinical or radiological evidence of recurrence. This case highlights the potential effectiveness of combining surgical excision and adjuvant radiosynovectomy to reduce the risk of recurrence in diffuse shoulder PVNS.