Successful treatment of recurrent extracranial hypoglossal schwannoma using the neuroendoscopic transnasal far-medial approach

Extracranial hypoglossal schwannomas are rare, and transcranial skull base surgery can be challenging due to their proximity to the lower cranial nerves, jugular vein, vertebral artery, and carotid artery. The application of neuroendoscopic surgery for extracranial hypoglossal schwannomas has rarely been reported.