Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval placement of an ET tube with the tip 1 cm proximal to the carina and retraction by approximately 3 .5 cm is advised . The cuff appears mildly overinflated . Right lower lobe airspace opacification shows mild progression compared to prior image . Small associated pleural effusion . The left lung is clear . No pulmonary edema . No pneumothorax . The cardiomediastinal shadow is unchanged .
    OUTPUT:
    
Retraction of the ET tube by 3 .5 cm advised .