Cochlear implantation in an intralabyrinthine acoustic neuroma patient after resection of an intracanalicular tumour.
This case study describes a therapeutic strategy using a cochlear implant for a bilateral acoustic neuroma deafened patient. The cochlear nerve had previously been sacrificed on one side during tumour removal, but on the remaining side a functioning cochlear nerve was assessed by electric promontory stimulation in spite of a neuroma extending into the vestibular labyrinth. The patient was successfully stimulated with a Nucleus 22-channel implant after removal of the intracanalicular portion of the neuroma via a middle fossa approach.
Tono
T
T
Department of Otolaryngology, Miyazaki Medical College, Japan.
Ushisako
Y
Y
Morimitsu
T
T
D003054:Cochlear Implants; D003390:Cranial Nerve Neoplasms / Q000473:pathology / Q000601:surgery*; D003638:Deafness / Q000628:therapy; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D016518:Neurofibromatosis 2 / Q000473:pathology / Q000601:surgery*