Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: MEDIASTINAL AND HILAR WIDENING IS CONSISTENT WITH KNOWN LYMPHADENOPATHY . RIGHT UPPER LOBE GEOGRAPHICALLY MARGINATED CONSOLIDATION AS WELL AS LEFT JUXTA HILAR CONSOLIDATION ARE CONSISTENT WITH PREVIOUS RADIATION TREATMENT . BIAPICAL PLEURAL THICKENING MAY ALSO BE DUE TO THIS PROCESS . A SUBTLE PATCHY OPACITY IS PRESENT AT THE LEFT LUNG BASE , AND IS NOT EVIDENT ON THE PRIOR PET - CT . THERE IS ALSO A PROBABLE SMALL LEFT PLEURAL EFFUSION .
    OUTPUT:
    
NEW PATCHY LEFT LOWER LOBE OPACITY WHICH COULD REFLECT AN EARLY FOCUS OF PNEUMONIA IN THE APPROPRIATE CLINICAL SETTING . SHORT - TERM FOLLOWUP RADIOGRAPHS MAY BE HELPFUL IN THIS REGARD . MEDIASTINAL AND HILAR LYMPHADENOPATHY ACCOMPANIED BY RADIATION FIBROSIS .