Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to chest radiographs from ___ , heart size has decreased , now mildly enlarged . When compared to prior chest radiograph of similar technique on ___ , left pleural effusion is minimally improved , while right effusion is unchanged . Mild central vascular congestion without overt pulmonary edema persists . Retrocardiac and mild bibasilar opacities , suggestive of atelectasis , have improved . Mediastinal and hilar contours are stable .
    OUTPUT:
    
1 . Interval decrease in heart size , now mildly enlarged . Minimally improved small left pleural effusion . Stable small right pleural effusion . 2 . Improving retrocardiac and bibasilar opacities , consistent with atelectasis . 3 . Persistent mild central vascular congestion without overt pulmonary edema .