Cardiac Tamponade Secondary to a Giant Pleuropericardial Cyst in a Child: A Surgical Case Report from Sub-Saharan Africa

Pleuropericardial cysts are rare mediastinal tumors with variable, often severe, clinical presentations in children, occasionally requiring urgent intervention. We report the case of a previously healthy 14-year-old male who was admitted with signs of severe congestive heart failure and clinical evidence of cardiac tamponade. Transthoracic echocardiography and thoracic CT scan confirmed the presence of a compressive mediastinal cystic mass. The patient underwent emergency surgical resection via median sternotomy. Histopathological examination confirmed a benign pericardial cyst. Postoperative recovery was uneventful, and no recurrence was observed after 2 years of follow-up.