Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph submitted with conventional and edge enhancement technique . Marked subcutaneous emphysema is seen in the entire imaged area for the base of the neck to the upper abdomen . Soft tissue expansion of the lateral chest from the air laterally . The right hemidiaphragm is separated from the liver by lucency consistent with pneumoperitoneum and pneumomediastinum is evident as well . No definite pneumothorax is visible . The endotracheal tube tip is approximately 5 cm above the carina . All lobes are aerated . Slight elevation of the right hemidiaphragm . Nasogastric tube is seen with the tip and side hole both below the left hemidiaphragm .
    OUTPUT:
    
Pneumoperitoneum , pneumomediastinum and extensive subcutaneous emphysema without definite visible pneumothorax . Endotracheal tube appears in adequate position .