Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were reviewed . Compared to the most recent prior , the small right - sided pleural effusion has decreased . There are no complications appreciated including pneumothorax . The heart , lungs and mediastinal contours are unchanged .
    OUTPUT:
    
Decrease in small right - sided pleural effusion . No pneumothorax .