A 28 years surgical experience of 398 sinusal mucoceles: how technologies, techniques and experiences have changed their treatment throughout the years.

Endonasal endoscopic SM marsupialization is a feasible technique which allows the preservation of the anatomy and physiology avoiding the surgical invasiveness of the external approaches. The well-established surgical expertise in the endonasal endoscopy together with technological improvements widened the indication range of the exclusive endoscopic technique over the traditional open surgery.