Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs are clear of confluent consolidation or effusion . Prominent interstitial markings have improved since prior . Cardiac silhouette is enlarged but stable in configuration . Median sternotomy wires are again noted . Hypertrophic changes seen in the spine . Surgical clips project in the upper abdomen .
    OUTPUT:
    
No acute cardiopulmonary process .