Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable supine view of the chest provided . The lungs are clear . No large effusion or pneumothorax . Cardiomediastinal silhouette is normal . Bony structures demonstrate no acute injury . Chronic left rib deformities are again noted .
    OUTPUT:
    
Chronic left - sided rib deformities . No signs of acute injury .