Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal contour appears unchanged . Linear opacity at the right lung base is felt to relate to atelectasis or scarring likely within the right middle lobe . No focal consolidation concerning for pneumonia . There is no pleural effusion or pneumothorax . Degenerative changes are noted in the bilateral acromioclavicular and glenohumeral joints with likely a rotator cuff tear on the right .
    OUTPUT:
    
1 . No focal consolidation concerning for pneumonia . Linear opacity at the right lung base likely relates to atelectasis or scarring , rather than pneumonia . 2 . Moderate to severe degenerative changes fo both acromioclavicular and glenohumeral joints , with probable chronic rotator cuff tear on the right .