Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest radiograph ___ at 10 :54 is submitted .
    OUTPUT:
    
Endotracheal tube has its tip 4 cm above the carina . A nasogastric tube is seen coursing below the diaphragm with the tip not identified . Right internal jugular central line has its tip in the distal SVC . The heart remains stably enlarged which may reflect cardiomegaly , although pericardial effusion should also be considered . Mediastinal contours are unchanged . Interval decrease in size of a right pleural effusion . Persistent retrocardiac consolidation may reflect partial lower lobe atelectasis , although superimposed infection can not be excluded . Interval appearance of mild perihilar edema . No obvious pneumothorax .