Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Background hyperinflation / COPD again seen , together with cardiomegaly , similar to the prior film . There is upper zone redistribution and mild vascular plethora , which is slightly more pronounced . No overt alveolar edema is identified . Small bilateral effusions are again see , similar to the prior study . There is bibasilar atelectasis , but no frank consolidation is identified .
    OUTPUT:
    
CHF with mild interstitial edema , slightly more pronounced than on ___ .