Shoulder pain, persistent. Evaluate for impingement or rotator cuff pathology. ROTATOR CUFF: Mild increased signal intensity within the distal supraspinatus tendon suggests mild tendinosis and possibly the bursal surface fraying along the anterior aspect of the tendon, but I see no fluid-filled tear. The supraspinatus muscle appears normal. Mild increased signal intensity within the distal infraspinatus tendon at its insertion also suggests mild tendinosis but I see no tear, and the muscle appears normal. There is moderate fatty atrophy of the teres minor muscle, of unknown etiology. Focal increased signal intensity within the distal subscapularis tendon at its insertion suggests tendinosis but I see no fluid-filled tear. There is a small cyst in the underlying humeral head. The subscapularis muscle appears normal.SUPRASPINATUS OUTLET: Mild osteoarthritis affects the acromioclavicular joint. I see no frank fluid within the subacromial/subdeltoid bursa. There is trace fluid within the subdeltoid bursa, of doubtful significance.GLENOHUMERAL JOINT AND GLENOID LABRUM: Glenohumeral joint alignment is within normal limits. There is a small amount of fluid within the glenohumeral joint, but no large effusion. There is mild deformity and increased signal intensity of the anteroinferior labrum that may reflect degeneration/degenerative tearing, but this is not necessarily of any current clinical significance. The posterior labrum appears intact.BICEPS TENDON: Given the limitations of a non-arthrogram study, the tendon of the long head of the biceps appears intact. ADDITIONAL
1.Mild rotator cuff tendinosis and possible bursal surface fraying as described above, but I see no fluid-filled tear. Fatty atrophy of the teres minor muscle is of unknown etiology.2.Mild osteoarthritis of the acromioclavicular joint and other findings as described above.