Expanded Endoscopic Endonasal Transcribriform Approach for Anterior Skull Base Olfactory Schwannoma
Anterior skull base (ASB) schwannomas are extremely rare and can often mimic other pathologies involving the ASB such as olfactory groove meningiomas, hemangiopericytomas, esthesioneuroblastomas, and other malignant ASB tumors. The authors demonstrate their step-by-step techniques for resection of an ASB olfactory schwannoma using a purely endoscopic endonasal transcribriform approach. This video describes and illustrates the operative nuances and surgical pearls to safely and efficiently perform the approach, tumor resection, and multi-layered reconstruction of the cranial base defect. Departments of Neurological Surgery and 2Otolaryngology -- Head and Neck Surgery, Center for Skull Base and Pituitary Surgery, Neurological Institute of New Jersey, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, New Jersey James K. Liu, MD, and Jean Anderson Eloy, MD, FACS
