Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube tip is between the clavicular heads . The endogastric tube courses inferiorly through the expected region of the stomach . The heart size is likely within normal limits , exaggerated by the patient 's leftward rotation . The mediastinal and hilar contours are also within normal limits . Again prominent soft tissue density in the right superior mediastinal space displaces the normal midline structures towards the left ; this mass likely represents a goiter . The lungs demonstrate mild bibasilar atelectasis . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
Mild bibasilar atelectasis .