Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates a nasogastric tube which goes at least as far as the stomach , and an endotracheal tube with the tip almost 7 cm above the carina . The relatively high position is explained by the elevated chin , and need not be advanced . Bibasilar atelectasis is redemonstrated , increased in the left lower lobe . The remainder of the exam is unchanged .
    OUTPUT:
    
Increased left lower lobe atelectasis .