Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The cardiac silhouette is mildly enlarged , likely accentuated by AP technique . There is mild prominence of the interstitial markings , slightly increased as compared to the prior study , raising concern for underlying mild interstitial edema in the appropriate clinical setting . The hilar vessels are again slightly prominent . No large pleural effusion is seen . There is no definite focal consolidation . No evidence of pneumothorax .
    OUTPUT:
    
Findings suggest mild interstitial edema .