Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube , right - sided Cordis introducer , mediastinal tubes and left - sided chest tube are again noted in unchanged positions . Nasogastric tube side - hole is probably just above the level of the gastroesophageal junction , unchanged . No pneumothorax is seen . There is unchanged obscuration of the left hemidiaphragm and new haziness of the right hemidiaphragm suggesting overlying subsegmental atelectasis and some of this appears to be perihilar as well . Plain film appearance of the arch of the aorta is unchanged
    OUTPUT:
    
New haziness at the right base and increased at the left base and high perihilar regions appears more related to atelectasis than edema .