Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Streaky left base atelectasis / scarring is seen . There is also mild right base atelectasis . Rounded cystic structure projecting over the lateral aspect of the left upper lung is stable . No new focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are stable . .
    OUTPUT:
    
Bibasilar atelectasis without definite focal consolidation or pneumothorax .