Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An airway stent is noted within a right lower lobe bronchus , best visualized on the lateral view . An air - fluid level within the right lower lobe corresponds to a cavitary lesion as noted on the previous CT . Small right pleural effusion is again noted along with a large right perihilar mass with resultant right lower lobe atelectasis . Mediastinal lymphadenopathy with widening of the right paratracheal stripe is re - demonstrated . Heart size is difficult to assess but appears mildly enlarged , similar compared to the prior exam . A moderate size hiatal hernia is again noted . Left lung is clear . No pneumothorax is identified . No displaced fractures are seen . No free air is seen under the diaphragms .
    OUTPUT:
    
1 . Air-fluid level in the right lower lobe corresponds to known cavitary lesion as seen on the prior chest CT . 2 . Small right pleural effusion , right perihilar mass , and right lower lobe atelectasis are all similar compared to the prior radiograph . 3 . Unchanged mediastinal lymphadenopathy .