Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal , and lungs are better expanded compared to the prior study . Sternotomy wires and surgical clips overlying the heart shadow are again noted . Left lower lobe opacity seen previously has improved , and the left - sided pleural effusion appears to have resolved . Cardiomediastinal contours are stable .
    OUTPUT:
    
Interval resolution of the left - sided pleural effusion with better expansion of the lungs bilaterally .