Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An extensive right hilar lung mass is associated with radiation fibrosis , better delineated on CT ___ . An additional component of postobstructive pneumonia may be present . Retrocardiac opacity , left pleural effusion , and left plueral thickening are also new . No pneumothorax is present .
    OUTPUT:
    
1 . Large right hilar lung mass and radiation fibrosis . Additional post-obstructive pneumonia in the right upper and lower lobes is possible but hard to delineate . 2 . New left retrocardiac opacity , small left effusion , and pleural thickening . Findings were discussed with ___ , RN , via telephone at ___ and again with Dr ___ at ___ .