Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Persistent right perihilar opacity corresponding to radiation fibrosis On a CT of ___ . Known bronchial stent is better evaluated by recent CT . Associated volume loss is demonstrated with marked elevation of the right hemidiaphragm . The left lung remains clear , and there is no definite pleural effusion .
    OUTPUT:
    
No new areas of consolidation to suggest an acute pneumonia . Similar post - treatment appearance of right lung as described .