Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild bibasilar atelectasis , greater in the left base than the right . Otherwise , the lungs are clear with no evidence of consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is at the upper limits of normal . The aorta appears somewhat tortuous . Cerclage wires are again noted overlying the posterior neck .
    OUTPUT:
    
No acute cardiopulmonary process .