Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest . Endotracheal tube terminates 3 .7 cm above the carina . Ill - defined left lower lung opacity may represent aspiration or asymmetric edema . The right lung is clear . No pneumothorax or substantial pleural effusion . Heart size and cardiomediastinal contours are normal .
    OUTPUT:
    
1 . Endotracheal tube terminates 3 .7 cm above the carina . 2 . Left lower lung ill - defined opacity may represent aspiration or asymmetric edema .