Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable chest radiograph demonstrates placement of endotracheal tube terminating at the level of the carina and should be withdrawn at least 3 cm to terminate at the level of the clavicle . Cardiomediastinal and hilar contours are unremarkable . Bibasilar opacifications , left greater than right , may represent atelectasis , though infection is not excluded . No pleural effusion or pneumothorax present .
    OUTPUT:
    
Endotracheal tube terminates at the level of the carina and should be withdrawn 3 cm . Bibasilar opacifications , atelectasis versus infection in the appropriate clinical setting .