Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is re-accumulation of the right - sided pleural effusion , which is small in size , status post removal of the pigtail catheter . Cardiac pacemaker leads are in unchanged positions . Cardiac silhouette is again enlarged but stable . The patient is status post median sternotomy and CABG . Left lower lobe opacity is consistent with atelectasis . There is mild pulmonary edema . No pneumothorax . Compression deformities of the upper lumbar vertebral bodies are again seen .
    OUTPUT:
    
Re-accumulation of small right - sided pleural effusion . Mild pulmonary edema .