50-year-old male with left shoulder pain and possible rotator cuff tear. ROTATOR CUFF: The supraspinatus and infraspinatus muscles and tendons appear intact. The teres minor and subscapularis muscles and tendons appear intact.SUPRASPINATUS OUTLET: There is no fluid within the subacromial subdeltoid bursa. Mild osteoarthritis affects the acromioclavicular joint.GLENOHUMERAL JOINT AND GLENOID LABRUM: There is a multilobulated collection of near fluid signal intensity along the posterior aspect of the glenoid and glenoid labrum compatible with a paralabral cyst, most likely arising from a degenerated posterior labrum which contains small foci of increased signal intensity. The remainder of the labrum is normal for age. The glenohumeral joint alignment is within normal limits. No effusion.BICEPS TENDON: The tendon of the long head of the biceps is normal in appearance.
1. Mild degeneration/degenerative tearing of the posterior labrum with adjacent paralabral cyst formation.2. Normal-appearing rotator cuff.3. Minimal osteoarthritis of the acromioclavicular joint.