Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A large left pleural effusion has decreased in size . Small - to - moderate left greater than right effusions still persist . Retrocardiac opacity has increased . Prominence of the central pulmonary vasculature is similar .
    OUTPUT:
    
1 . Decrease in small - to - moderate left pleural effusion , stable right effusion . 2 . Increased retrocardiac opacity may reflect atelectasis or consolidation depending on the clinical context . 3 . Stable minimal pulmonary edema .