Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated with flattening of the diaphragms and increased retrosternal clear space suggestive of underlying COPD . Heart size is normal . Mediastinal and hilar contours are within normal limits . The pulmonary vasculature is normal . No focal consolidation , pleural effusion or pneumothorax is visualized . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process . COPD .