Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and aortic valve replacement . Left - sided AICD device is again noted with lead terminating in the region of the right ventricle . Moderate enlargement of the cardiac silhouette is unchanged . The aorta remains unfolded , and the mediastinal and hilar contours are similar . Chronic diffuse interstitial opacities are most pronounced within the upper lobes , not substantially changed in the interval . No new focal consolidation , pleural effusion or pneumothorax is identified . There are mild to moderate degenerative changes seen in the thoracic spine .
    OUTPUT:
    
Chronic interstitial lung disease , not substantially changed in the interval . Moderate cardiomegaly .