Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Lower lung volumes seen on the current exam , and there is mild bibasilar atelectasis . Elsewhere , the lungs are clear and the cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Lower lung volumes without acute cardiopulmonary process .