Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . Streaky posterior left basilar opacities suggest minor atelectasis . Otherwise , the lungs appear clear . There are no pleural effusions or pneumothorax . Although not optimally assessed , the cardiac , mediastinal , and hilar contours are probably within normal limits for technique .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .