Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube tip in satisfactory position approximately 2 .5 cm above the carina . NG tube present , extending beneath diaphragm . The tip overlies the stomach . The sideport likely also overlies the stomach , but may lie just distal to the GE junction . A left IJ central line tip overlies the proximal SVC . No pneumothorax detected . Again seen areextensive diffuse bilateral alveolar opacities and as well as increased retrocardiac density , obscuration of the left hemidiaphragm , and of the extreme lateral right hemidiaphragm . Confluent biapical opacity again noted . The overall appearance is similar to the prior study , allowing for technical differences . The right hemidiaphragm is slightly better defined on today 's examination , which could reflect very slight improvement at the right lung base . The possibility of bilateral small effusions can not be excluded .
    OUTPUT:
    
Lines and tubes as described . Extensive diffuse bilateral patchy opacities , overall similar to the prior study , would possible slight clearing at the right lung base .