Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left chest wall dual lead pacemaker is present . The patient is status post prior median sternotomy and CABG . There are bibasilar opacities , greater on the left which may reflect atelectasis or consolidation in the proper clinical context . No pleural effusion or pneumothorax is identified . The size the cardiomediastinal silhouette is enlarged but unchanged .
    OUTPUT:
    
Left greater than right bibasilar opacities may reflect atelectasis , or consolidation in the proper clinical context . No pulmonary edema .