Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . No prior . Lungs are clear of focal consolidation , effusion , or pneumothorax . Cardiac silhouette is top normal in size . There is irregularity of the lateral left clavicle , which is better characterized on dedicated exam . There is no visualized displaced rib fracture .
    OUTPUT:
    
No definite acute cardiopulmonary process .