Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Opacification and scarring of the right upper lung and right hilum is compatible with prior radiation changes with deviation of the trachea to the right . Lung parenchyma is otherwise grossly clear and hyperexpanded . There is no focal consolidation concerning for pneumonia . Note is made of a hiatal hernia .
    OUTPUT:
    
No acute cardiopulmonary process . Chronic changes from prior radiation .