Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were reviewed and compared to the prior studies . Unchanged bibasilar linear opacities are more prominent on the left than on the right and are likely aatelectasis . The cardiac and mediastinal contours are normal . There is no pneumothorax or pleural effusion . Free intraperitoneal air has increased and is expected in a peritoneal dialysis patient . Prominence of air filled small bowel loops in the upper abdomen could represent ileus .
    OUTPUT:
    
1 . Unchanged bibasilar linear opacities are likely atelectasis . 2 . Prominence of air filled small bowel loops in the upper abdomen could represent ileus .