Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to severe enlargement of the cardiac silhouette is unchanged . The mediastinal and hilar contours are similar . Lung volumes remain low . No focal consolidation , pleural effusion or pneumothorax is visualized . Pulmonary vasculature is normal . No acute osseous abnormalities demonstrated . Clip is seen projecting within the upper abdomen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .