Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . Cardiomediastinal silhouette is top - normal in size . There is no pneumothorax or pleural effusion . Visualized osseous structures are unremarkable . No free air is identified diaphragm .
    OUTPUT:
    
No acute cardiopulmonary process . No free air under the diaphragm .