Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Heart size is normal . The aorta is tortuous . Pulmonary vasculature is normal . Hilar contours are unremarkable . Lungs appear clear without focal consolidation . Minimal blunting of the right costophrenic angle suggests a trace pleural effusion . No pneumothorax is detected . There are no acute osseous abnormalities .
    OUTPUT:
    
Minimal blunting of the right costophrenic angle suggestive of a trace pleural effusion . Otherwise , no acute cardiopulmonary abnormality .