Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy . Blunting of the bilateral posterior costophrenic angles suggests trace pleural effusions . No focal consolidation is seen . There is no pneumothorax . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Trace blunting of the bilateral posterior costophrenic angles suggests trace pleural effusions / pleural thickening .