Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac size is unchanged . Interval improvement in large right pleural effusion with decreased right midlung and lower lung opacities . No evidence of pulmonary edema . No left pleural effusion . Left lung is clear . There is no pneumothorax . Left pectoral pacemaker with pacer leads in the right atrium and right ventricle in expected position . Right PICC tip is at the level of superior SVC again noted .
    OUTPUT:
    
Interval improvement in right base pneumonia and pleural effusion . No pulmonary edema .