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Updated: May 7, 2026

Treatment Protocol for Rotator Cuff Calcific Tendinitis Using a Single-Crystal Piezoelectric Focused Shock Wave Source
Published on: December 23, 2022
Synovial osteochondromatosis in the subacromial bursa mimicking calcific tendinitis: sonographic diagnosis
Tae-Kwon Kim1, Dae-Hee Lee, Jong-Hoon Park
1Department of Orthopaedic Surgery, Teunteun Hospital, Ansan, Korea.
Abstract:
Synovial osteochondromatosis is an idiopathic benign metaplasia of the synovial membrane rarely found in an extra-articular bursa. We describe the case of a 55-year-old woman with synovial osteochondromatosis in the subacromial bursa mimicking calcific tendinitis. Plain radiographs showed a radiopaque mass over the middle facet of the greater tuberosity, suggesting calcific tendinitis. Sonography, however, showed a loose body in the subacromial bursa, and no evidence of calcification inside the rotator cuff.
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