Endolymphatic sac tumor: staged endovascular-neurosurgical approach.

Endolymphatic sac tumors are rare, low-grade adenocarcinomas of the petrous bone. These tumors are highly vascularized and. surgical removal is often challenging. We present a staged endovascular-neurosurgical approach :consisting of stent-assisted angioplasty of the petrous. carotid, selective endovascular embolization and surgical removal.