Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were obtained . Lungs are clear bilateral with no focal consolidation , effusion or pneumothorax . There is no evidence of CHF . Cardiomediastinal silhouette is unchanged from prior with a somewhat tortuous aorta . An old left sixth rib fracture is reidentified . Unchanged appearance of three thoracic vertebral body compression fractures . Clips are noted in the right upper quadrant .
    OUTPUT:
    
No acute intrathoracic process .