Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest demonstrates tip of the ET tube extending to 3 .6 cm above the carina , satisfactory . A previously noted small pneumothorax on initial presentation CT dated ___ is no longer appreciated . A left transthoracic chest tube has similar configuration as compared to prior exam . An enteric tube traverses inferiorly below diaphragm with tip in the stomach . Midline abdominal surgical ___ are in place . The heart is top normal in size . The mediastinal and hilar contours are within normal limits allowing for AP technique . Dense retrocardiac opacity likely represents atelectasis . Upper lungs are well aerated . There is no large pleural effusion . Multilevel nondisplaced or minimally displaced left posterolateral ribs are better delineated on prior CT from two days ago , in keeping with history of trauma .
    OUTPUT:
    
Lines and support devices in appropriate position .