39-year-old male with shoulder pain. Evaluate cuff, biceps. ROTATOR CUFF: There is intermediate signal intensity within the distal fibers of the supraspinatus tendon anteriorly indicating tendinosis. A tiny (2 mm) focus of fluid signal intensity within the distal fibers of the tendon at its insertion is suggestive of an interstitial tear but we see no disruption of either surface of the tendon. The supraspinatus muscle appears normal. The infraspinatus muscle and tendon appear normal. The teres minor muscle and tendon appear normal. There is increased signal intensity and thickening of the subscapularis tendon indicating tendinosis and possibly undersurface fraying but we see no fluid-filled tear. The subscapularis muscle appears normal.SUPRASPINATUS OUTLET: Os acromiale. There is edema within the os acromiale with minimal, if any, osteoarthritic changes at the acromioclavicular joint. There is a small amount of fluid in the subacromial subdeltoid bursa which may represent a mild bursitis. GLENOHUMERAL JOINT AND GLENOID LABRUM: Joint alignment is normal. There is a small amount of fluid in the joint but no effusion. Given the limitations of a non-arthrogram study we see no labral tear. The articular cartilage appears normal. There are small cysts along the posterolateral aspect of the humeral head which is not necessarily of any current clinical significance.BICEPS TENDON: There is increased signal intensity within the long head of the biceps tendon at its transition from the intertubercular groove to the rotator interval indicating mild tendinosis.
1. Os acromiale with edema within the os which may reflect instability.2. Mild subacromial subdeltoid bursitis.3. Mild supraspinatus tendinosis and tiny insertional interstitial tear.4. Subscapularis tendinosis and undersurface fraying.5. Tendinosis of the long head of the biceps tendon.