Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . This accentuates the size of the cardiac silhouette which is moderately enlarged . The aorta remains diffusely calcified and markedly tortuous . There is no pulmonary vascular engorgement . No focal consolidation , pleural effusion or pneumothorax is seen . Mild atelectatic changes are noted within the lung bases . Left - sided dual - chamber pacemaker device is seen with leads terminating in the right atrium and right ventricle . There is no displaced fracture identified .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis . Otherwise , no acute cardiopulmonary abnormality .