Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart remains stably enlarged . The aorta is tortuous . There is no focal consolidation , pneumothorax , or effusion . The pulmonary vasculature is normal . The lungs are mildly hyperinflated . There also moderate degenerative changes of the thoracic spine .
    OUTPUT:
    
Mild COPD . No acute cardiopulmonary abnormality .