Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the earlier radiograph , the ET tube has been further advanced into the lower trachea . Mild pulmonary edema is likely unchanged . Bilateral breast implants contribute to the increased density at both lung bases . Right lower lobe collapse , partial left lower lobe collapse , a right pleural effusion , and small layering left pleural effusion are unchanged .
    OUTPUT:
    
ET tube in lower trachea . Withdrawal by a 2 - 3 cm is advised for more optimal ventilation . No other significant interval change .