FAMILIAL BILATERAL ACOUSTIC TUMOURS

Abstract

THE earliest record of bilateral recess tumours in association with central neurofibromatosis was reported by Wishart' in 1882; he regarded them as originating from the seventh cranial nerves. Knobloch2 had noted cases as long ago as 1843, but it was not till 1902 that the condition was described in detail, by Henneberg and Kock3. Their first case was one of von Recklinghausen's disease with multiple neurofibromata of skin and peripheral nerves, extra-and intradural spinal nerves, of ninth and tenth cranial roots, and bilateral acoustic tumours.