Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP upright portable chest radiograph was obtained . The lungs are clear bilaterally without focal consolidation , effusion , or pneumothorax . No free air below the right hemidiaphragm is seen . Cardiomediastinal silhouette is normal . No bony abnormalities are seen .
    OUTPUT:
    
No acute intrathoracic process . No signs of free air below the right hemidiaphragm .