Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post sternotomy , coronary artery bypass graft surgery and aortic valve replacement . A dual - lead pacemaker / ICD device appears unchanged , with leads terminating in the right atrium and ventricle , respectively . The heart is again moderately enlarged . The mediastinal and hilar contours appear unchanged . There is asymmetric opacification of the right lung more so than left with an interstitial pattern suggesting an asymmetric form of vascular congestion , although overall similar to decreased , particularly in the left lung . Posterior patchy basilar opacities are most suggestive of coinciding atelectasis . There is a better defined opacity loculated along the right lower lateral chest wall , suggestive of a loculated pleural effusion . There is also a small pleural effusion on the left . There is no pneumothorax .
    OUTPUT:
    
Decreased opacification , particularly in the left lung , suggesting improvement in pulmonary congestion . Better definition of basilar opacity suggesting pleural effusions , loculated on the right side to some degree .