Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A Port - A - Cath terminates at the cavoatrial junction . The lung volumes are low . Streaky opacities at the lung bases are probably attributable to atelectasis . There is no definite pleural effusion or pneumothorax .
    OUTPUT:
    
Low lung volumes . No evidence of acute cardiopulmonary disease .