Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip terminates approximately 4 cm from the carina . A nasogastric tube is noted which is coursing below the diaphragms , off the inferior borders of the film . There are low lung volumes . The heart size is mildly enlarged . Apparent widening of the superior mediastinum is likely due to supine technique and low lung volumes . There is crowding of the bronchovascular structures , with a possible element of mild pulmonary vascular congestion . Minimal streaky opacities in the lung bases likely reflect atelectasis . No pleural effusion or pneumothorax is identified .
    OUTPUT:
    
1 . Endotracheal tube in standard position . Nasogastric tube courses below the diaphragm , with the tip not visualized , off the inferior borders of the film . 2 . Low lung volumes with probable mild pulmonary vascular congestion and bibasilar atelectasis .