Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is bibasilar atelectasis with low lung volumes crowding the bronchovascular markings . There is no focal consolidation or pulmonary edema . The heart is enlarged , and a left cardiac device is in stable position with its leads projecting over the right atrium and ventricle .
    OUTPUT:
    
Low lung volumes without pulmonary edema or focal consolidation .