Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of the cardiac silhouette is unchanged . The mediastinal and hilar contours are stable . The lungs are hyperinflated but no focal consolidation is seen . There is no pleural effusion or pneumothorax . No pulmonary vascular congestion is present . No acute osseous abnormalities are seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .