Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Scarring and atelectasis is present at both lung bases . No consolidation is identified . No effusions or pneumothoraces are seen . The aorta is tortuous . Cardiomediastinal contours are otherwise unremarkable .
    OUTPUT:
    
Bibasilar atelectasis and scarring . No acute cardiopulmonary process .