Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Comparison is made to same - day chest x-ray with interval placement of ET tube terminating 0 .5 cm superior to the carina . Previously seen lower left lobe opacity is improved and likely represents small left pleural effusion with left lower lobe atelectasis . Again the cardiomediastinal silhouette is stable . There is no evidence of focal opacities , pneumothorax , or pulmonary edema .
    OUTPUT:
    
1 . Interval placement of ET tube terminating 0 .5 cm superior to the carina . 2 . Small left pleural effusion with left lower lobe atelectasis .