Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . There are low lung volumes with bibasilar atelectasis . Infection can not be excluded . Pulmonary vasculature is within normal limits .
    OUTPUT:
    
Bibasilar atelectasis . Infection can not be excluded in the correct clinical setting .