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Multiple monitor leads and oxygen tubing overlie the patient. Nasogastric tube in situ. ETT also present.
Large amount of air noted in the anterior and middle mediastinum especially in the left paracardiac region. There is mild subcutaneous emphysema noted along the left lateral chest wall underneath the axilla. Features are indicative of pneumomediastinum.
Spinnaker sign: thymus is prominent and outlined by air.