Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right chest wall dual lead central venous catheter is again seen with tip in the right atrium . Low lung volumes are noted with bibasilar atelectasis . There is no focal consolidation worrisome for pneumonia nor effusion . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes without acute cardiopulmonary process .