Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs volumes are very low which limits evaluation . Within this limitation , there is no pleural effusion , pneumothorax or defniite focal airspace consolidation . The cardiac silhouette is mildly enlarged but unchanged . The mediastinal and hilar contours are normal .
    OUTPUT:
    
No acute cardiopulmonary process seen on this limited study . If concern for pneumonia persists , a repeat exam with a better inspiratory effort is recommended to more fully assess the lung bases .