Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs volumes are slightly decreased , accentuating the cardiac silhouette and bronchovascular structures . There is prominence of the aortic knob . The cardiomediastinal and hilar contours are otherwise within normal limits . There is no focal consolidation , pleural effusion or pneumothorax . Surgical clips are seen in the apices bilaterally .
    OUTPUT:
    
No acute cardiopulmonary process .