Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Increased interstitial markings are seen throughout the lungs without confluent consolidation . There is no effusion . There is enlargement of the cardiac silhouette which is in part due to prominent pericardial fat and pericardial effusion . The cardiac size as seen on prior CT is normal . Atherosclerotic calcifications noted at the aortic arch . S - shaped thoracic scoliosis is identified . No acute osseous abnormality is seen .
    OUTPUT:
    
Diffuse bilateral interstitial opacities may be due to interstitial edema . No confluent consolidation or effusion . Enlarged cardiac silhouette due to prominent pericardial fat and pericardial effusion identified on recent CT scan .