Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The ETT and enteric tube are unchanged in position . Cardiac silhouette is within normal limits . Right upper lobe opacity is again identified , unchanged . There is prominence of both hilar regions and new patchy opacity in the left upper lung which may represent developing infiltrate . There is no pleural effusion .
    OUTPUT:
    
New patchy opacity in the left upper lung may represent developing infection .