Eight video clips are commented, showing the surgical steps of a standard retrosigmoid approach to a case of right-sided vestibular schwannoma, grade T4a according to Samii’s classification. Keyhole craniotomy is performed and followed by dural incision. Facial nerve is then located, and the capsule is incised by means of thulium laser fiber. The internal auditory canal is opened, and the contents are dissected in order to preserve the facial nerve. Flexible endoscopy final check in the internal auditory canal is shown in the case of a left-sided intracanalicular vestibular schwannoma, grade T1.