Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no marked interval change of lungs when compared to the prior study . Once again seen are linear opacities in the left lung , which may be related to the overlying multiple rib fractures , or may represent some focal atelectasis . There is a left chest tube in place , but the side port lies just outside of the rib cage . An endotracheal tube is properly positioned . A nasogastric tube has been withdrawn and now lies with the side port just at the gastroesophageal junction . There is no pneumothorax or pleural effusion . The right lung is clear . Pulmonary vascularity is normal . A left scapular fracture and right second rib fracture are once again seen .
    OUTPUT:
    
1 . No interval change in the cardiopulmonary system . 2 . The left chest tube lies with the side port outside of the rib cage and should be advanced by 2 cm . 3 . The nasogastric tube should also be advanced by 2 cm to ensure that the side port lies within the stomach .