Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . The cardiomediastinal silhouette , hilar contours , pleural surfaces are normal . There are no focal opacities to suggest pneumonia . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary abnormalities . Mild interstitial lung abnormalities characterized on recent chest CT are not well demonstrated on conventional radiograph .