Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is mild bibasilar atelectasis . No definite focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes and hilar contours are stable .
    OUTPUT:
    
No significant interval change from the prior study two days prior .