A Case of Mediastinal Emphysema Following Functional Endoscopic Sinus Surgery.

Mediastinal emphysema is an extremely rare and potentially fatal complication of endoscopic sinus surgery. The case presented involves a 73-year-old man who developed mediastinal emphysema following endoscopic sinus surgery for severe sinonasal polyposis. We describe the multiple etiologies that may have contributed to his condition including possible microtrauma at the time of intubation or during intubation, microfracture of the orbital wall/lamina papyracea, and severe hiccups.