Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is somewhat limited due to lordotic positioning . The patient is status post median sternotomy and CABG . Heart size is mildly enlarged . Mediastinal contours remain unchanged . The aorta appears unfolded with diffuse atherosclerotic calcifications . There is crowding of the bronchovascular structures , but no overt pulmonary edema is noted . Previously noted right pleural effusion has decreased in size with only a small amount of pleural fluid remaining . Trace left pleural effusion likely persists . Patchy bibasilar opacities likely reflect atelectasis . No large pneumothorax is identified . Multiple clips are demonstrated within the left hemiabdomen and epigastric region .
    OUTPUT:
    
Interval decrease in size of small right pleural effusion with minimal left pleural effusion remaining . Low lung volumes with patchy bibasilar atelectasis .