70 year old female with right shoulder pain. Evaluate rotator cuff. ROTATOR CUFF: There is a focal partial-thickness tearing of the undersurface fibers of the supraspinatus tendon just proximal to its insertion on the greater tuberosity. The tear involves approximately 50% of tendon thickness. The tear propagates slightly along the longitudinal axis of the supraspinatus as an interstitial tear, in total, measuring 6 mm in length. The bursal surface fibers of the supraspinatus tendon are intact. The supraspinatus muscle is intact. There is a small cyst in the greater tuberosity at the site of the insertion of the infraspinatus tendon. The infraspinatus muscle and tendon appear intact. The subscapularis and teres minor muscles and tendons appear intact.SUPRASPINATUS OUTLET: Mild osteoarthritis affects the acromioclavicular joint.GLENOHUMERAL JOINT AND GLENOID LABRUM: Moderate osteoarthritis affects the glenohumeral joint. There is abnormal signal intensity within the superior glenoid labrum, indicating a tear that propagates down the anterior labrum and is associated with paralabral cyst formation along the anterior glenoid. There is a small amount of fluid within the glenohumeral joint but no frank effusion.BICEPS TENDON: There is increased signal intensity within the long head of the biceps tendon at its transition from the intertubercular sulcus to the rotator interval likely representing degenerative tearing and tendinosis with associated small subchondral cysts in the humeral head.
1. Small undersurface tear of the supraspinatus tendon as described above.2. Glenohumeral and acromioclavicular joint osteoarthritis with tearing of the glenoid labrum as described above.3. Tendinosis and probable degenerative tearing of the long head of the biceps tendon.