Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest show a dual - lead left pectoral pacemaker with leads terminating in the right atrium and right ventricle , unchanged . A right - sided Port - A - Cath has been placed with the tip terminating in the mid SVC . Post-surgical changes in the right hemithorax with volume loss and scarring in the right upper lobe along the right paratracheal region is due to prior surgery and radiation . Multiple pulmonary nodules seen on CT of ___ are below the resolution of radiography . There is no pleural effusion , pneumothorax , or focal consolidation . The pulmonary vasculature is not engorged . Fullness of the right mediastinum is explained by known subcarinal mass , better seen on recent CT of ___ . An adjacent fiducial is seen at the right hilum . The cardiac silhouette is normal in size .
    OUTPUT:
    
1 . No appreciable pulmonary lesions . Multiple pulmonary nodules seen on prior CT of ___ are below the resolution of radiography . 2 . Stable post - treatment changes of the right hemithorax . 3 . Right mediastinal fullness due to known subcarinal mass better seen on CT of ___ with adjacent fiducial at the right hilum .