Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates interval decrease in size of the right - sided pleural effusion , which is now moderate in size . Linear lucency along the right lateral lung had resolved on subsequent chest radiograph and likely represents a skin fold rather than a pneumothorax . Stable small left pleural effusion . Bibasilar compressive atelectasis . Cardiomediastinal and hilar contours are unchanged .
    OUTPUT:
    
1 . Interval decrease in size of the right - sided pleural effusion , which is now moderate in size . 2 . Stable small left pleural effusion . 3 . Bibasilar atelectasis .