Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is moderately to severely enlarged . The aorta is tortuous and diffusely calcified . The pulmonary vascularity is not engorged . Interstitial opacities in the lung bases may either reflect atelectasis and / or chronic changes . No focal consolidation , pleural effusion or pneumothorax is seen . There appears to be subluxation of the glenohumeral joints bilaterally with degenerative changes which appear chronic .
    OUTPUT:
    
Mild interstitial opacities in the lung bases likely reflect areas of either atelectasis and / or chronic changes .