Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate stable prominent cardiac silhouette as compared to one year prior . There are atherosclerotic calcifications in the aortic arch . Patient is status post median sternotomy and aortic valve as well as CABG . There are mild interstitial changes in the upper lungs which appears similar to perhaps slightly increased . The lungs appear otherwise clear . There is no pneumothorax , vascular congestion , or pleural effusion . A large hiatal hernia is redemonstrated . Displaced right humeral fracture is unchanged in configuration since at least ___ . Marked kyphosis is also unchanged . Allowing for significant diffuse osteopenia , no new compression fracture is evident .
    OUTPUT:
    
Interstitial change in the upper lungs which appears perhaps slightly more prominent ; this could be associated with chronic congestion or mild congestion superimposed on background lung disease or perhaps an underlying interstitial process . Clinical correlation is recommended regarding the possibility of chronic interstitial disease favoring the upper lungs ; chest CT could be applied to investigate further if clinically indicated .