Schwanoma of the cervical sympathetic chain: A case report.

Introduction And Importance: Any cranial, peripheral, or autonomic nerve in the body can give rise to a benign, slowly growing encapsulated nerve sheath tumor known as a schwannoma. The majority of parapharyngeal extracranial schwannomas, which typically have vagal origins, are located there. When they first appear, most swannomas are asymptomatic.