Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild bibasilar atelectasis is seen . There is no definite focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . The hilar contours are stable . A subtle tubular structure is seen projecting over the upper abdomen , partially imaged .
    OUTPUT:
    
Mild bibasilar atelectasis . No pleural effusion seen .