Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . Coronary stents are noted . There is no pleural effusion or pneumothorax . The lungs are slightly hyperexpanded but clear without focal consolidation concerning for pneumonia . Postsurgical changes are noted in the upper abdomen . Degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .