Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG and coronary artery stenting . The cardiac and mediastinal silhouettes are stable . There appears to be a small left pleural effusion . No definite focal consolidation is seen . There is no pneumothorax . Mild anterior compression of a mid thoracic vertebral body .
    OUTPUT:
    
Small left pleural effusion .