Male, 50 years old. Right shoulder pain with no improvement from Subacromial injection ROTATOR CUFF: There is an undersurface tear of the supraspinatus tendon at its insertion on the greater tuberosity that appears to involve the anterior fibers of the infraspinatus tendon as well. Along the posterior margin of the tear, only a thin strand of bursal surface fibers remains. It is difficult to compare the tear on the current study to that seen on the prior study due to differences in positioning. The tear is approximately 1.5 cm in AP dimension. There is also mild interstitial tearing along the myotendinous junction of the supraspinatus more proximally that has progressed slightly from the prior study. The supraspinatus muscle appears normal. There is also mild tendinosis of the infraspinatus tendon with cyst formation in the underlying humeral head that has progressed from the prior study. The infraspinatus muscle appears normal. The teres minor tendon and muscle appear normal. The subscapularis tendon is intact, and the muscle appears normal. SUPRASPINATUS OUTLET: Mild to moderate osteoarthritis affects the acromioclavicular joint. We see no frank fluid within the subacromial/subdeltoid bursa.GLENOHUMERAL JOINT AND GLENOID LABRUM: Glenohumeral joint alignment is normal. There is no joint effusion. The gap between the anterior portion of the superior labrum and the underlying glenoid appears wider on the current study than on the prior study. This may be due to differences in patient positioning resulting in exaggeration of a normal variant sublabral sulcus. The inferior labrum appears intact.BICEPS TENDON: Mild increased signal within the intra-articular portion of the tendon of the long head of the biceps suggests tendinosis.
1.Undersurface tearing of the distal supraspinatus tendon as described above.2.Acromioclavicular osteoarthritis appearing similar to the prior study.3.Other findings as described above.