Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated but clear . The cardiomediastinal silhouette is within normal limits . Tortuosity of descending thoracic aorta is noted . Thickening along the fissure on the lateral view is unchanged from prior . No acute osseous abnormalities . Old right posterior rib fracture is noted .
    OUTPUT:
    
No acute cardiopulmonary process .