Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lungs are grossly clear . No convincing evidence for pneumonia or CHF . No large effusion or pneumothorax . The cardiomediastinal silhouette appears grossly within normal limits . No free air below the right hemidiaphragm . 2 anchors are noted overlying the right humeral head . There is significant high riding of the right humeral head indicative of chronic rotator cuff disease . Findings are less pronounced though also present on the left with associated left AC joint arthropathy .
    OUTPUT:
    
No acute findings . Chronic degenerative changes of the shoulders as detailed .