Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Esophageal stent positioned in the mid and lower esophagus is unchanged in position . Ill - defined opacities , one in the right mid and another in the right perihilar regions are more conspicuous than it was on ___ and is concerning for pneumonia . Left lung is clear . There is no pleural abnormality . Heart size , mediastinal and hilar contours are normal .
    OUTPUT:
    
Two , focal , ill - defined opacities in the mid lung and perihilar region on right side are concerning for pneumonia .