Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , with bibasilar atelectasis . The heart size is mildly enlarged , stable compared to the prior examination . Allowing for AP technique . Calcified pleural plaques projecting over the left mid lung are unchanged in appearance . No pleural effusion , pneumothorax , overt pulmonary edema , or focal consolidation is identified . A left chest wall pulse generator device is unchanged in position , with leads terminating in the right atrium and right ventricle . No acute osseous abnormality is detected .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis . Calcified left pleural plaques , unchanged .