Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval intubation with an endotracheal tube terminating 6 cm above the carina , at the inferior margin of the clavicular heads . Mild elevation of left hemidiaphragm is unchanged . Focal opacity at the left lung base is increased . No pleural abnormality . Heart size is normal . Cardiomediastinal hilar silhouettes are unremarkable . An enteric tube side port is located in the gastric body .
    OUTPUT:
    
Asymmetric opacity at the left lung base likely reflects aspiration .