Malignancy in a vestibular schwannoma; Report of a case with central neurofibromatosis, treated by both stereotactic radiosurgery and surgical excision, with a review of the literature. - Bari,M.E.; Forster,D.MC.; Kemeny,A.A.; Walton,L.; Hardy,D.; Anderson,J.R. (Br J Neurosurg, 2002)