European position paper on endoscopic management of tumours of the nose paranasal sinuses and skull base Cranial Neurosurgery, Endoscopy, Minimally Invasive, Oncology, Skull Base ← Avoiding Injury to the Abducens Nerve During Expanded Endonasal Endoscopic Surgery: Anatomic and Clinical Case Studies “Far-Medial” Expanded Endonasal Approach to the Inferior Third of the Clivus: The Transcondylar and Transjugular Tubercle Approaches →