Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left chest tube has been placed and a small to moderate left pleural effusion has decreased in size compared to the chest radiograph performed 1 day prior . There is a small right pleural effusion . The previously seen right lower lobe opacity has improved . No pneumothorax is identified . The cardiac and mediastinal contours are stable .
    OUTPUT:
    
Interval placement of a left chest tube and decrease in size of a small to moderate left pleural effusion . Improving right lower lobe opacity .