Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube ends at the carina , but neck is flexed so endotracheal tube should be withdrawn by no more than 2 cm . Right PICC ends at the cavoatrial junction . NG tube extends into the stomach . Interval mediastinal widening likely reflects increased intravascular volume . Low lung volumes . Stable retrocardiac opacity reflects mild left lower lobe atelectasis .
    OUTPUT:
    
Endotracheal tube ends at the carina and could be withdrawn by no more than 2 cm to achieve standard placement . Interval mediastinal widening reflects increased intravascular volume .