Reason: Rotator cuff tear? History: decreased ROM + drop sign ROTATOR CUFF: There is a near full-thickness to full-thickness tear of the supraspinatus at the level of its insertion on the greater tuberosity measuring approximately 17 mm in the AP dimension. There is minimal retraction. There is increased signal abnormality within the muscle belly of the supraspinatus and infraspinatus as well as within the subscapularis to a lesser degree. There is partial thickness articular surface tearing of the anterior fibers of the infraspinatus as well. There is a partial-thickness articular surface tear of the subscapularis at the level of its insertion measuring approximately 5 mm in the craniocaudal dimension. The teres minor muscle and tendon appear intact. No masses or lesions are identified within the suprascapular notch.SUPRASPINATUS OUTLET: There is a trace amount of fluid within the subacromial subdeltoid recess. Mild to moderate osteoarthritis affects the acromioclavicular joint.GLENOHUMERAL JOINT AND GLENOID LABRUM: The glenohumeral joint alignment is anatomic. There is heterogeneity and intermediate signal intensity within the superior and posterior glenoid labrum likely reflecting degeneration and degenerative tearing within the limitations of this non arthrogram study.BICEPS TENDON: The tendon of the long head of the biceps appears intact. There is thickening and intermediate signal intensity within the intra-articular portion of the long head of the biceps tendon indicating moderate tendinosis.ADDITIONAL
1. High-grade near full-thickness to full-thickness tear of the supraspinatus with minimal retraction as well as partial-thickness tearing of the anterior fibers of the infraspinatus and superior fibers of the subscapularis.2. Increased signal abnormality within the supraspinatus, infraspinatus and subscapularis muscle bellies is nonspecific but may reflect subacute denervation or perhaps Parsonage-Turner syndrome.3. Other findings as described above.