Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Lung volumes are low . Small bibasilar linear opacities are unchanged and consistent with scarring or atelectasis . The lungs are otherwise clear without focal consolidation , pleural effusion , or pneumothorax . Heart size and cardiomediastinal contours are normal . Thoracic spine degenerative changes are similar to prior .
    OUTPUT:
    
No acute cardiopulmonary process .