Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs remain hyperexpanded , suggesting underlying chronic obstructive pulmonary disease . Biapical pleural scarring is worse on the right , and is little changed in appearance dating to ___ . There is no pleural effusion , and no pneumothorax . There is no focal opacity to suggest pneumonia . Hilar and cardiomediastinal contours are unchanged , with mild cardiac enlargement . No pulmonary vascular congestion or edema . Degenerative changes within the thoracic spine , without acute compression deformity or displaced rib fracture identified .
    OUTPUT:
    
Hyperexpansion in keeping with chronic obstructive pulmonary disease . No superimposed acute cardiopulmonary process .