CT - CT with oral contrast
The CT confirms the chest x-ray findings of pneumomediastinum, with gas within the central and superior mediastinum, and also within the soft tissues of the neck and chest wall.
There is no evidence of pneumothorax, pleural effusion or fluid in the mediastinum.
No leak of orally administered contrast from oesophagus. Contrast is concentrated in the stomach.
No pneumoperitoneum.