Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates a left chest port , 2 leads which project over the anticipated location of the right atrium and just below the superior cavoatrial junction . There is a moderate - sized right pleural effusion which obscures the right heart border . The left lung appears grossly clear , streaky opacity at the left lung base thought likely atelectatic . There is no evidence of pulmonary edema . There is no pneumothorax .
    OUTPUT:
    
New relative to prior examination dated ___ is a moderate to large - sized right pleural effusion which obscures the right heart border . No focal opacity convincing for pneumonia .