<prompt> Schwannoma of spinal nerve roots is seen in?Neurofibromatosis 1Neurofibromatosis 2Turcot syndromeLi - Fraumeni syndrome  <response>: Schwannoma is a benign tumor arising from Schwann cells of cranial and spinal nerve roots. NF-1 is associated with an increased incidence of schwannomas of spinal nerve roots. MC schwannoma is vestibular schwannoma or acoustic neuroma arises from vestibular poion of 8th cranial nerve. Patients with NF-2 have an incidence of vestibular schwannomas that are frequently bilateral. 