Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is leftward rotated limiting the evaluation . The ET tube is 4 cm from the carina . Enteric tube courses into the stomach . Opacity at the left base may reflect pleural effusion and / or aspiration . The lungs are otherwise clear . There is no pneumothorax . Heart size is normal . Mitral annular calcification is noted .
    OUTPUT:
    
1 . ET tube 4 cm from the carina . 2 . Opacity at the left base may reflect effusion and / or aspiration .