Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . The lungs are hyperinflated with flattening of the diaphragms compatible with underlying COPD . No focal consolidation , pleural effusion or pneumothorax is present . There is mild biapical scarring . Diffuse demineralization of the osseous structures is noted . No acute osseous abnormality seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality . COPD .