Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . No prior . The lungs are clear of focal consolidation . Cardiomediastinal silhouette is within normal limits for supine technique . Multiple bilateral anterior rib fractures , which appear old , are noted . Old left clavicular fracture is also seen .
    OUTPUT:
    
No definite acute cardiopulmonary process .