Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The right lung base mass is visualized . Linear opacity in the left midlung is most suggestive of atelectasis . There is no large confluent consolidation . The cardiomediastinal silhouette is within normal limits . Posterior spinal fixation hardware is noted .
    OUTPUT:
    
Low lung volumes with right lung base mass visualized . Limited exam without new confluent consolidation .