Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The cardiac , mediastinal and hilar contours are stable and within normal limits . The pulmonary vascularity is normal . The lungs are clear without focal consolidation . Trace right pleural effusion is noted . Previously noted small left pleural effusion has resolved . No pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
Trace right pleural effusion . Otherwise , no acute cardiopulmonary abnormality .