Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Clips in the left axilla noted . Subtle linear opacity in the left lung base likely represents atelectasis . Retrocardiac opacities compatible with hiatal hernia . Lungs otherwise clear . Cardiomediastinal silhouette is normal . Bony structures appear intact .
    OUTPUT:
    
Mild left basal atelectasis . Hiatal hernia .