Right shoulder pain and weakness ROTATOR CUFF: There is a high-grade partial-thickness undersurface tear of the supraspinatus tendon situated at the 11:00 position approximately 2 cm proximal to the greater tuberosity. The tear involves greater than 50% thickness of the tendon with sparing of the bursal surface fibers. This measures approximately 10 mm in the longitudinal dimension and 8 mm in the AP dimension. There is mild to moderate tendinosis of the remaining supraspinatus tendon but the supraspinatus muscle appears normal in caliber and signal. There is perhaps mild tendinosis of the infraspinatus tendon but there is no evidence of tear. The infraspinatus muscle is normal in caliber and signal. The teres minor and subscapularis tendons and muscles are normal.SUPRASPINATUS OUTLET: There is mild osteoarthritis of the acromioclavicular joint. A trace amount of fluid is noted within the subacromial-subdeltoid bursa.GLENOHUMERAL JOINT AND GLENOID LABRUM: There is attenuation of the posterior superior labrum which may reflect normal variation or degenerative tearing but we see no fluid-filled SLAP tear. There is linear intermediate signal intensity in the anterior labrum which likely represents tearing with small adjacent paralabral cysts anterior to the glenoid.BICEPS TENDON: No significant abnormality noted.
Focal but high-grade partial-thickness undersurface tearing of the supraspinatus tendon and additional findings described above.