Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Supine portable AP view of the chest was provided . The endotracheal tube is seen with its tip residing 3 .7 cm above the carina . The NG tube is seen with its tip in the left upper abdomen . A left chest tube is in place . Subcutaneous emphysema is noted along the left base of neck and chest wall . Subtle air lucency adjacent to the aortic knob is compatible with pneumomediastinum . Lower lobe consolidation is evidenced by retrocardiac consolidation containing a single air bronchogram . No discernable pneumothorax is seen . No definitive rib fracture is identified .
    OUTPUT:
    
Endotracheal tube and orogastric tubes appear positioned appropriately . Findings of pneumomediastinum and left lower lobe consolidation as well as subcutaneous emphysema in the chest wall are better assessed on the subsequent CT performed 40 minutes later .