Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable view of the chest : Extensive opacification of the right hemi thorax the combination of atelectasis , particularly of the right upper lobe , as well as a moderate - sized pleural effusion with right lower lobe atelectasis as well . The mediastinum is shifted to the right owing to the atelectasis . The left lung by comparison is essentially clear aside from minimal bibasilar atelectasis . Heart size is probably within normal limits . The large amount of free intra-abdominal air is similar in quantity to 4 days prior .
    OUTPUT:
    
1 . Right upper lobe collapse 2 . Moderate right - sided pleural effusion . 3 . Large amount of intra-abdominal free air , more than would be expected 5 days after surgery .