RT Journal Article SR Electronic T1 The painful shoulder: When to inject and when to refer JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 473 OP 488 VO 74 IS 7 A1 Codsi, Michael J. YR 2007 UL http://www.ccjm.org/content/74/7/473.abstract AB Physicians can usually diagnose the cause of shoulder pain by performing a focused history and physical examination and ordering anteroposterior and lateral radiographs. Treatment depends on the cause and can include physical therapy, injections of corticosteroids into the joint space or bursa, and surgery. This paper reviews the diagnosis and treatment of impingement syndrome, adhesive capsulitis, rotator cuff tears, and arthritis of the glenohumeral joint and acromioclavicular (AC) joint.