Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post coronary artery bypass graft surgery . The cardiac , mediastinal and hilar contours appears unchanged . There is an unchanged moderate pleural effusion on the right with associated right basilar atelectasis . A small pleural effusion on the left side also appears unchanged . Multifocal areas of reticulation are also similar to the prior study . Metallic stents project over the right upper quadrant .
    OUTPUT:
    
Stable appearance of the chest .