“…Previous case reports have linked shoulder PVNS with massive, often irreparable rotator cuff tears [7][8][9][10][11][12][13][14][15] and chondral lesions [7,10,16,17]. Numerous treatment modalities have been proposed, including open or arthroscopic synovectomy and debridement [7,8,10,12,18] versus arthroplasty [16,19,20], with or without the use of adjuvant radiation [8], depending on the severity and extent of intra-articular disease, presence of extra-articular disease, and surgeon experience. In this case report, we describe a case of insidious PVNS involving the glenohumeral joint and biceps tendon sheath that was treated with arthroscopic synovectomy, debridement, and subpectoral biceps tenodesis.…”