Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Fractured superior most wire is again seen . Cardiac and mediastinal silhouettes are stable with the cardiac silhouette mildly enlarged . Small right - sided pleural effusion is again seen , which is likely chronic . Overlying right base opacity may be due to overlying atelectasis , but is concerning for pneumonia given the clinical scenario . Left lung is clear . There is no left pleural effusion . No evidence of pneumothorax is seen .
    OUTPUT:
    
Again seen small right pleural effusion , which may be chronic . Overlying right base opacity pneumonia vs atelectasis ; given clinical scenario , pneumonia is of concern . Stable cardiomediastinal silhouette .