Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the prior CXR performed 2 days earlier , there has been interval improvement in the substantial right pleural effusion . The left lung is essentially clear . There is no pneumothorax . No new areas of focal consolidation . Swan - Ganz catheter terminates in the right pulmonary artery . Left pectoral pacemaker is re-demonstrated , with leads terminating in the right atrium and right ventricle . Cardiomediastinal silhouette is enlarged , not significantly changed from prior .
    OUTPUT:
    
Continued improvement in large right pleural effusion . No other significant changes .