Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is prominent right apical scarring , chronic , with elevation of the hila . . The patient is status post right clavicular surgery . There is left perihilar airspace opacity worrisome for pneumonia . Recommend followup to resolution to exclude underlying mass . Subtle increase in interstitial markings bilaterally could be due to mild underlying interstitial edema although atypical infection is not excluded . There is also prominence of the left hilum , also seen on the prior study but slightly more conspicuous today ; underlying lymphadenopathy may be present . No pleural effusion or pneumothorax is seen . The lungs are hyperinflated . The cardiac silhouette is top - normal to mildly enlarged . The aortic knob is calcified .
    OUTPUT:
    
Left ___- and infrahilar airspace opacity , worrisome for pneumonia . Recommend followup to resolution to exclude underlying mass . Prominence of the left hilum , more conspicuous as compared to the prior study , could relate to underlying lymphadenopathy . Subtle increase in interstitial markings bilaterally could be due to mild underlying interstitial edema although atypical infection is not excluded .