Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle lateral left base opacity is felt to more likely represent atelectasis rather than consolidation . It is not clearly seen on the lateral view . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable and unremarkable . Hilar contours are stable .
    OUTPUT:
    
Subtle lateral left base opacity is felt to more likely represent atelectasis rather than consolidation .