Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal . Lungs remain hyperinflated suggestive of chronic obstructive pulmonary disease . Lungs are otherwise clear without focal consolidation . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .