Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to radiograph from the same day , the left bronchial stent has been removed . There is improved aeration of the left lung , however there is significant diffuse airspace opacity and moderate left - sided effusion . Minimal right basal atelectasis . Moderate cardiomegaly . No pneumothorax .
    OUTPUT:
    
Improved aeration of the left lung , with persistent widespread atelectasis and moderate left effusion .