Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A dual lead left pectoral pacemaker is in place . Aside from bibasilar areas of linear atelectasis , the lungs are clear . There is no pneumothorax . Mild cardiomegaly is stable . Aortic arch calcifications are again incidentally noted .
    OUTPUT:
    
Bibasilar linear atelectasis with otherwise clear lungs . Stable mild cardiomegaly .