Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Allowing for differences in patient rotation the lungs are clear with apparent resolution of the right middle lobe opacity . There is no pleural effusion or pneumothorax . The heart is normal in size . Normal cardiomediastinal silhouette . Minimal biapical pleural thickening is noted .
    OUTPUT:
    
Resolution of previously seen right middle lobe opacity .