Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided pacer and multiple leads are unchanged in position . Sternotomy wires are demonstrated . The heart is enlarged , but stable from the prior exam . A left pleural effusion is minimally decreased from the prior examination done yesterday . There is a layering right pleural effusion . No pneumothorax is identified . There is some parenchymal opacity at the left base , likely reflective of atelectasis . Left basal pigtail catheter is in place
    OUTPUT:
    
Small bilateral pleural effusions . The left effusion is decreased in size from the prior examination .