Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The lungs remain hyperinflated with flattening of the diaphragms . Again there are extensive fibrotic changes bilaterally , worse in the upper lungs but also seen in the mid and lower lungs . Again there is superior retraction of the hila and bilateral pleural plaques seen , left greater than right . The previously seen right base consolidation has improved in the interval . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Chronic changes , as above without definite acute cardiopulmonary process .