  There is extensive supraspinatus tendinosis and partial tearing as described. There is no retracted tendon or muscular atrophy, but there may be a small tear along the anterior edge of the tendon at the level of the rotator interval, and this associated partial tearing of the superior most fibers of the subscapularis tendon.  There is also a high-grade partial tear of the long biceps tendon as it courses under the transverse humeral ligament. There is no evidence of a complete tear or retracted tendon. Small nondisplaced posterior superior labral tear. Outlet narrowing from the acromioclavicular joint, which in the appropriate clinical setting is an MRI manifestation of an impinging lesion.