Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Esophageal stent is again seen , appears more inferior in position as compared to the prior study . Right perihilar chronic changes are seen . There is slight increase in the right mid lung opacity which could be due to underlying infection , possibly in the superior right lower lobes . No pneumothorax is seen .
    OUTPUT:
    
1 . Inferior migration of patient 's esophageal stent as compared to the prior study . 2 . Slight increase in right mid lung patchy opacity may due to consolidation in the superior right lower lobe which could be due to an infection . The above findings were discussed with Dr . ___ on ___ via telephone .