Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is mild bibasilar atelectasis . No discrete focal consolidation is seen . There is no pleural effusion or pneumothorax . The aorta is tortuous . The cardiac silhouette is within normal size . Chronic old rib deformities along the left lateral chest are again seen .
    OUTPUT:
    
No acute cardiopulmonary process .