Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided dual - chamber pacer terminates in the right atrium and ventricle . There are small bilateral pleural effusions , greater on the left . The lungs are clear , though there is evidence of volume loss on the left . The heart size is normal . Prominent atherosclerotic calcifications are noted throughout the thoracic aorta .
    OUTPUT:
    
No evidence of pneumonia .