Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Nasogastric tube projects over the stomach and terminates within the stomach . However , the notch of the nasogastric tube appears too proximal and should be advanced 5 - 10 cm . There is opacification obscuring the left heart border and left hemidiaphragm and leftward mediastinal shift . This is consistent with volume loss and / or pleural effusion with volume loss being the bigger contributor . Right lung is grossly clear . Mediastinal borders and hilar structures are normal .
    OUTPUT:
    
Nasogastric tube should be advanced 5 cm . Left lung volume loss and possible left pleural effusion .