Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Pulmonary vascular congestion and mild interstitial pulmonary edema have increased compared with the prior study with new small to moderate left and trace right pleural effusions . Right lung base opacity is most likely related to pulmonary edema , however a superimposed infectious process is difficult to exclude . Hyperinflation is unchanged .
    OUTPUT:
    
1 . Interval increase in mild pulmonary vascular congestion and associated interstitial edema with a new small to moderate left pleural effusion . 2 . Right lung base opacity is most likely related to pulmonary edema , however superimposed infectious process is possible in the proper clinical setting . 3 . COPD