Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An ET tube is present . The tip lies approximately Re 0 .4 cm above the carina . An NG tube is present . The tip and side - port extend beneath the diaphragm , overlying the upper stomach . Right IJ central line tip is again seen to overlie the upper right atrium . No pneumothorax is detected . Inspiratory volumes are slightly low . There is probable mild cardiomegaly , accentuated by lordotic positioning . Patchy retrocardiac opacity and blunting of the left costophrenic angle is again seen , overall similar to the prior study . Equivocal minimal subsegmental atelectasis the right lung base . Lungs are otherwise grossly clear . No right effusion . No CHF .
    OUTPUT:
    
Lines and tubes as described . Patchy retrocardiac density and small left effusion are overall similar to the prior study .