Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular line has been removed . Left descending aortic stent is seen in situ . Since ___ , the right lower lung opacity which was likely a combination of effusion and atelectasis has significantly resolved . Mild amount of pleural effusion , however , still persists . Right lower lung and middle lobe atelectasis is present . Increased retrocardiac density reflecting left lower lung atelectasis and mild - to - moderate left pleural effusion are similar in appearance . Cardiomediastinal silhouette is stable in appearance .
    OUTPUT:
    
Since ___ , right lower lung opacity which was likely a combination of atelectasis and moderate amount of effusion has significantly improved with mild residual fluid and minimal right basal and middle lobe atelectasis . Left lower lung atelectasis and mild - to - moderate pleural effusion is unchanged .