Fig. 2

Relationship between the surgical space and neurovascular structures. A, B Anterior view of 3D reconstruction of neurovascular structures and corridors 1 and 2. C, D Posterior view of 3D reconstruction of neurovascular structures and corridors 1 and 2. BA, basilar artery; CN X, vagus nerve; CN XI, accessory nerve; CN XII, hypoglossal nerve; GJ, glomus jugulare; MO, medulla oblongata; SS, sigmoid sinus; VA, vertebral artery