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Surgery for Intracranial Schwannoma

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Intracranial Schwannomas are benign tumours arising from the nerve sheath of cranial nerves alongside the cerebellum and brainstem. Vestibular (acoustic) schwannomas are treated by surgical removal by a minimally invasive retrosigmoid craniotomy (surgical removal of part of the bone from the skull to expose the brain) or by skull-based approach, or by radiosurgery. For tumours over 2½ cm surgical removal is mostly recommended. Trigeminal schwannomas are typically treated by surgical removal through a retrosigmoid craniotomy or other skull base approach.