Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The aorta is slightly unfolded . The mediastinal and hilar contours are stable and within normal limits . Pulmonary vascularity is normal . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . Lungs remain hyperinflated . There are mild multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .