Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . Mild right - sided pulmonary vasculature congestion , pleural thickening on the right , right effusion , and right - sided subcutaneous air are unchanged . Left lung base atelectasis continues to improve . No pneumothorax .
    OUTPUT:
    
Left lung base atelectasis continues to improve . No other significant changes from yesterday .