Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is an increase in opacity at the right perihilar region . There is no pleural effusion or pneumothorax . The visualized osseous structures are unremarkable . Left - sided pacer with leads in appropriate position . Partially demonstrated is a surgical neck fracture of the proximal right humerus , better evaluated on the prior exam from ___ .
    OUTPUT:
    
Right perihilar opacity may be secondary to pneumonia in the appropriate clinical setting .