Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Sutures are noted within the left upper lobe . Mediastinal and hilar contours are unremarkable . The left lung appears clear with no focal consolidation or pleural effusion . Opacification within the right middle lobe noted only on the lateral view most likely represents atelectasis . There is no pneumothorax .
    OUTPUT:
    
Opacification noted within the right middle lobe only on the lateral view likely represents atelectasis .