Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Elevation of the right hemidiaphragm is re - demonstrated along with streaky opacities in the lung bases compatible with areas of chronic scarring . No focal consolidation , pleural effusion or pneumothorax is present . Moderate multilevel degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
Chronically elevated right hemidiaphragm with chronic bibasilar scarring . No focal consolidation .