Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright portable chest radiograph was provided . The lungs are clear . Cardiomediastinal silhouette is normal . No pneumothorax or pleural effusion . No free air below the right hemidiaphragm . No signs of pneumomediastinum . Bony structures are intact .
    OUTPUT:
    
No acute findings in the chest .