Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . The aorta is tortuous . Mediastinal and hilar contours are otherwise unchanged . Pulmonary vasculature is normal . Lungs are mildly hyperinflated but clear without focal consolidation . No pleural effusion or pneumothorax is present . Mild degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .