Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tracheal tube is noted in the mid trachea . Enteric tube traverses towards the stomach . There are increased opacities overlying the left lung with the most confluent opacities at the left lung base . Additionally , there is left lower lobe atelectasis with mild leftward shift of mediastinal structures . Otherwise , cardiac and mediastinal contours are within normal limits . No acute fracture identified .
    OUTPUT:
    
Endotracheal tube is in position . Opacities overlying the left lung with the most confluent opacities at the left lung base and likely representing an infectious or aspiration process . Additionally , there is left lower lobe atelectasis with mild leftward shift of mediastinal structures .