Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube ends 6 .4 cm above carina . Bibasilar opacities have slightly increased on the left side . Cardiac contour is mildly enlarged . Pleural effusions are small , if any . There is no pneumothorax .
    OUTPUT:
    
1 . ET tube is in adequate position . 2 . Bibasilar opacities have slightly increased on the left side which could reflect atelectasis , pneumonia , or aspiration .