Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta remains tortuous . The mediastinal and hilar contours are otherwise similar . Pulmonary vasculature is not engorged . Lungs remain hyperinflated . No focal consolidation , pleural effusion or pneumothorax is demonstrated . Mild degenerative changes are again seen within the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .