Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is unremarkable . Linear atelectasis is seen at the bases and right middle lobe . No definite consolidation is identified . There is no large pleural effusion .
    OUTPUT:
    
No definite pneumonia . If clinical suspicion for infection persists , short - term followup radiographs may be helpful as a subtle infection may be difficult to detect in the setting of chronic right middle lobe and bibasilar scarring .