Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates approximately 3 cm above the carina . Normal cardiomediastinal contours . Low lung volumes . Increased focal density at the left lung base may reflect pneumonia in the appropriate clinical context .
    OUTPUT:
    
Appropriate ET tube placement . Increased focal density at the left lung base may reflect pneumonia in the appropriate clinical context .