Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable upright chest radiograph was provided . Compared to the prior radiograph , there has now been interval worsening of interstitial opacities consistent with progressive pulmonary edema . More dense parenchyma in the right lower lung may be more confluent edema ; however , pneumonia can not be excluded . The heart remains enlarged . Small bilateral pleural effusions are noted . The imaged upper abdomen is unremarkable .
    OUTPUT:
    
Worsening pulmonary edema , particularly in the right lower lobe .