Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . Left lower lobe opacity , new from ___ , is massive aspiration or pneumonia given the provided history . The left upper lung zone and the right lung are clear . Eventration of the right hemidiaphragm is unchanged . Cardiac and mediastinal silhouettes and hilar contours are stable . Hiatal hernia , previously containing
    OUTPUT:
    
Left lower lobe opacity aspiration or pneumonia .