Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The Swan - Ganz catheter terminates in a branch of the descending right pulmonary artery , advanced in position compared to chest radiograph from ___ . The heart is severely enlarged , unchanged compared to prior study from ___ but increased compared to radiograph from ___ . The mediastinal silhouette is unremarkable . There has been interval resolution of pulmonary edema compared to chest radiograph from 2 days prior . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
1 . Swan - Ganz catheter terminates in the distal right pulmonary artery , advanced in position compared to chest radiograph from ___ . 2 . Pulmonary edema has resolved . 3 . Severe cardiomegaly , unchanged compared to chest radiograph from ___ .