Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lordotic and slightly rotated positioning . Possibility of background hyperinflation / COPD can not be excluded . The heart is not enlarged . There is slight prominence of the ascending aorta and scattered aortic calcifications . The descending aorta is grossly unremarkable . Within the limits of plain film radiography , no hilar or mediastinal lymphadenopathy is detected . No CHF , focal infiltrate , effusion , or pneumothorax is identified . Minimal bibasilar atelectasis is likely present . Focal calcification overlying the left neck is suggestive of carotid artery calcification .
    OUTPUT:
    
1 . Possible background changes of hyperinflation / COPD . Clinical correlation and , if clinically indicated , a lateral view could help further assessment . 2 . No acute pulmonary process identified . 3 . Mild prominence of the ascending aorta , disproportionate to the descending aorta . In the appropriate clinical setting , this can be associated with hypertension or aortic stenosis . 4 . Probable left carotid artery calcification .