Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Possible mild hyperinflation , which could reflect mild COPD . The heart is not enlarged . Aorta is tortuous and minimally calcified . No CHF , focal infiltrate , effusion or pneumothorax is detected . Mild T - spine degenerative changes noted .
    OUTPUT:
    
No acute pulmonary process identified .