Shoulder weakness ROTATOR CUFF: There is branching increased signal intensity within much of the distal fibers of the infraspinatus tendon and adjacent supraspinatus tendon posteriorly that is suspected to represent a network interstitial tearing which extends to both the bursal and articular surfaces of the tendon. There is also interstitial tearing of the infraspinatus tendon more proximally along the myotendinous junction with additional mild tendinosis and bursal surface fraying affecting the distal supraspinatus tendon near the 12:00 position. There is no frank fluid-filled gap or retraction of either tendon however. The subscapularis and teres minor tendons are normal. There is mild fatty atrophy of the infraspinatus muscle along the myotendinous junction but the remaining rotator cuff musculature is intact.SUPRASPINATUS OUTLET: There is minimal osteoarthritis of the acromioclavicular joint and a trace amount of fluid in the subacromial subdeltoid bursa.GLENOHUMERAL JOINT AND GLENOID LABRUM: The glenohumeral alignment is normal. There are no significant arthritic changes. There is intermediate signal intensity within the superior labrum which may reflect degenerative tearing.BICEPS TENDON: No significant abnormality noted.
Network of interstitial tearing predominantly involving the infraspinatus tendon at its insertion with extension to both the bursal and articular surfaces however there is no discrete fluid-filled gap or tendon retraction of the rotator cuff. Additional findings are described above.