Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Lungs are clear . There is no focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is stable with aortic calcification again noted . Imaged osseous structures are intact . Dextroscoliosis of the spine , apex at the thoracolumbar junction . Tracheobronchial tree calcifications are noted .
    OUTPUT:
    
No acute intrathoracic process