Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes with secondary crowding of the bronchovascular markings . There is no confluent consolidation or effusion . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities . Posterior cervical fixation hardware is partially visualized .
    OUTPUT:
    
No acute cardiopulmonary process .