Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest tube ends in the left lower lung . The small left pleural effusion is decreased in size , but still tiny pneumothorax remains . The bilateral diffuse hazy opacities are decreased from prior study . There is no pleural effusion . Heart size is normal . Mediastinal and hilar contours are normal .
    OUTPUT:
    
Decrease in small left pneumothorax . Increased lung aeration bilaterally .