Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are symmetrically well expanded and well aerated without focal consolidation concerning for pneumonia , pleural effusion or pneumothorax . The pulmonary vasculature is not engorged . The cardiac silhouette is chronically top normal size . The mediastinal and hilar contours are within normal limits . The trachea is midline . Healed rib fractures are redemonstrated .
    OUTPUT:
    
No acute cardiopulmonary process .