50-year-old male with right shoulder pain, swelling, redness. ROTATOR CUFF: There is thickening and increased signal abnormality within the supraspinatus tendon consistent with moderate tendinosis. There is a partial thickness undersurface tear of the supraspinatus tendon at the level of its insertion on the greater tuberosity. The supraspinatus muscle is normal in appearance. The infraspinatus muscle and tendon appear intact. The teres minor and subscapularis muscle and tendon appear intact.SUPRASPINATUS OUTLET: Mild degenerative changes affect the acromioclavicular joint.GLENOHUMERAL JOINT AND GLENOID LABRUM: There is edema type signal abnormality within the bone marrow of the humeral head within with associated subchondral cyst formation, presumably degenerative in etiology. There is an apparent subcentimeter cystic lesion along the posterior superior glenoid labrum which may represent a para labral cyst (7; series 5). This raises the question of a posterior superior labral tear, although this examination was not protocoled for evaluation of the glenoid labrum.BICEPS TENDON: There is a small amount of fluid along the long head of the biceps tendon which may represent fluid extension from the glenohumeral joint. ADDITIONAL
1. Extensive subcutaneous edema, skin thickening, and edema type signal abnormality, particularly along the anterior aspect of the deltoid muscle raises a question of cellulitis/myositis. No focal fluid collection is identified to suggest abscess formation.2. Partial thickness undersurface tearing of the supraspinatus tendon.3. Other findings as described above.