Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . The heart is normal size . Increased opacification at the right base and distortion of the right cardiac border likely relate to moderate - sized right pleural effusion and adjacent atelectasis . Lungs are otherwise clear . There is no left effusion . No pneumothorax .
    OUTPUT:
    
Moderate right pleural effusion and adjacent atelectasis .