Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The cardiomediastinal and hilar contours are normal . There is calcification of the aortic arch . No pleural effusions or pneumothorax . Multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process . Resolved right lower lobe pneumonia .