Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are normal . The lungs are well expanded and clear . There is no pleural effusion or pneumothorax . The visualized osseous structures are unremarkable . There is no opaque density in the esophagus .
    OUTPUT:
    
No opaque density suggestive of a retained capsule seen in the esophagus .