Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tip and sideport of the nasogastric tube terminate within the stomach . An endotracheal tube is in unchanged position approximately 5 .5 cm above the carina . A left central venous catheter terminates in the upper SVC . Atelectasis of the left lung is slightly worse , causing volume loss and subsequent leftward shift of mediastinal structures . The low lung volumes are causing crowding pulmonary vasculature . The small - to - moderate left pleural effusion is unchanged . No pulmonary edema is identified . There is no pneumothorax .
    OUTPUT:
    
1 . Nasogastric tube properly positioned within the stomach . 2 . Worsening left lung atelectasis causing volume loss . 3 . Stable mild - to - moderate left pleural effusion . 4 . The endotracheal tube could be advanced 1 .5 cm for optimal positioning .