1st Athens Seven Gliomas Surgery Course Callosal and butterfly gliomas 16:30 – 17:00 · Saturday 24 October 2026 (30 minutes) SPEAKERS Aristotelis FILIPPIDIS MD, PhD, Neurosurgeon, Ascension St. Vincent’s Spine & Brain Neurosurgery – Riverside, Jacksonville, FL, USA Session: Posterior networks and mapping during resection