Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . A moderate left pleural effusion has increased in size . A right effusion remains small . Dependent atelectasis at the left base is also present . No new consolidation , pneumothorax or , consolidation is identified . The cardiac and mediastinal contours are unremarkable .
    OUTPUT:
    
Increase in left pleural effusion and overlying atelectasis .