Learning Objectives:

Introduction: Large cholesteatomas are generally congenital origin and by the years reach considerable sizes. Most of the cases may be indolent for years and first detected only after development of complications.

Method: Between 2010–2016 34 large cholesteatomas were operated on at Izmir Bozyaka Teaching and Research Hospital ENT Clinic. Eighteen of them seeked attention because of intratemporal complications, intracranial complications led to surgery in 4 other cases. In this presentation short clips of operative videos of some of these cases would be shown and important points would be stressed.