Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and show a focal linear opacity in the right middle lobe . The cardiomediastinal silhouette and hilar contours are normal . No pleural effusion or pneumothorax is present . There is no free air .
    OUTPUT:
    
Linear plate like atelectasis in the right middle lobe . No evidence of free air .