Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Relatively low lung volumes are seen . There is no confluent consolidation , effusion or pneumothorax . The cardiomediastinal silhouette is within normal limits . Comminuted left clavicular fracture is as described on dedicated exam .
    OUTPUT:
    
No acute cardiopulmonary process .