Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal portable view of the chest was obtained . The patient is rotated with respect to the film . Endotracheal tube terminates 2 .0 cm above the carina . Nasogastric tube side hole is within the stomach . The heart size is normal . Cardiomediastinal contours are unremarkable . Opacity in the left lung base is compatible with atelectasis . Blunting of the left costophrenic angle may represent a small pleural effusion . No lobar consolidation . No pneumothorax . Osseous structures are unremarkable .
    OUTPUT:
    
1 . Endotracheal tube terminates 2 .0 cm above the carina and should be repositioned for optimal position . 2 . Small left pleural effusion with left lung base opacity , which is compatible with atelectasis , although infection is not excluded .