Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is slight blunting the posterior costophrenic angles which may be due to trace pleural effusions . No new focal consolidation is seen . There is no evidence of pneumothorax . The cardiac and mediastinal silhouettes are stable . The patient is status post median sternotomy .
    OUTPUT:
    
Slight blunting of the posterior costophrenic angles may be due to trace pleural effusions though consolidation .