Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . Lower lung volumes seen on the current exam . The lungs , however , are clear of confluent consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette is unchanged given differences in positioning and technique . No displaced rib fracture is identified . Soft tissues are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .