Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs demonstrate stable extensive post - surgical changes of the left hemithorax with associated loss of volume . Stable scarring noted in the right lung apex . On a background of chronic lung disease and chronic bibasilar opacifications there is new prominence of the interstitium as well as Kerley B lines consistent with pulmonary edeam . Heart size is top normal and stable . No pleural effusion or pneumothorax identified .
    OUTPUT:
    
Stable background chronic lung changes . Stable top normal heart size with evidence of volume overload consistent with provided diagnosis of right ventricular regurgitation .