Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . There is no pleural effusion or pneumothorax . Lateral view suggests minor atelectasis or airway thickening in in 1 arm perhaps both posterior lower lobes but no convincing evidence for pneumonia .
    OUTPUT:
    
Findings suggest airway inflammation or atelectasis but no convincing evidence for pneumonia .