Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP semi-upright portable chest radiograph provided . The lungs are clear . There is no focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . Fusion hardware is noted at the lower thoracic and lumbar spine . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
No acute intrathoracic process .