Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided AICD / pacemaker device is noted with leads terminating in right atrium and right ventricle . The patient is status post median sternotomy and CABG . The heart remains mildly enlarged . Aortic knob is calcified . There is mild interstitial pulmonary edema and small bilateral pleural effusions , new compared to the prior exam . Patchy opacities in the lung bases could reflect atelectasis but aspiration and infection can not be excluded . No pneumothorax is identified . There is diffuse demineralization of the osseous structures .
    OUTPUT:
    
Mild congestive heart failure with small bilateral pleural effusions . Patchy bibasilar airspace opacities could reflect atelectasis but infection and aspiration are not excluded .