Acute Delayed Tension Pneumopericardium: The First Reported Case After Elective Lobectomy.

Pneumopericardium is an overall rare condition caused by increased intrathoracic positive pressure. Different mechanisms can contribute to its development. It can be observed in both pediatric and adult populations. Only a small percentage of patients have cardiac tamponade. We describe the first case of delayed tension pneumopericardium after elective lobectomy. Sudden symptom onset and clinical management are discussed. Only an accurate and quick patient assessment allowed diagnosing this condition and, hence, its correct treatment. Although the diagnosis of pneumopericardium is uncommon, if untreated, it can be fatal.