Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were reviewed . Compared to the prior study , there has been a slight interval decrease in the right pleural effusion and no change in the left pleural effusion . There is bibasilar atelectasis , otherwise the lungs are clear without evidence of vascular congestion , pleural effusion , or pneumothorax . Old left clavicular dislocation and fracture as well as old left second through sixth rib fractures are unchanged .
    OUTPUT:
    
Slight interval decrease of right pleural effusion and no change of left pleural effusion . No pneumothorax .