Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval increased aeration of the right lung base however there are persisting bilateral , predominantly lower lung zone patchy opacities . Mild pulmonary edema persists but appears slightly improved . Small bilateral pleural effusions . No pneumothorax identified . The size and appearance of the cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Mild interval decrease in the extent of the patchy opacities in the left lower lung zone . Minimally improved pulmonary edema .