Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy . A left - sided pacemaker generator pack projects leads into the right atrium and ventricle . Lower sternal wires remain intact . A right lower lobe nodule is present . There is no pneumothorax or pleural effusion . Linear bibasilar opacities are most compatible with atelectasis .
    OUTPUT:
    
Right lower lobe nodule , better seen on consequent CT examination .