Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a right Port - A - Cath with the tip in the cavoatrial junction . There is a pacemaker overlying the left chest with leads in the right atrium and right ventricle , which appears unchanged in comparison to the prior radiograph . The left pleural effusion has improved , however there is a residual small amount of pleural fluid . The left retrocardiac opacity has also improved . The right lung is clear . Heart size is stable . The mediastinal and hilar contours are stable . The pulmonary vasculature is normal . No pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . Appropriately positioned right Port - A - Cath and pacemaker . 2 . Improvement of left pleural effusion and basilar atelectasis .