Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right tunneled dialysis catheter has been placed in the interim with its tip in the right atrium . Central pulmonary vascular congestion and edema is mild . Blunting of the bilateral costophrenic angles , worse on the left , is consistent with a small left and trace right pleural effusion . No focal consolidation to suggest focal pneumonia . No pneumothorax . The heart size is mildly enlarged , overall unchanged . The mediastinum is not widened . Lung volumes have improved since the prior exam .
    OUTPUT:
    
Mild edema and small - to - trace bilateral pleural effusions .