Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are stable , cardiac size can not be evaluated , the aorta is tortuous . Patient is status post CABG . Left pleural effusion and adjacent consolidation has improved . . The right lung is grossly clear . There is no pneumothorax . Sternal wires are aligned .
    OUTPUT:
    
Improved left lung consolidation and small left effusion