An acoustic neuroma is:
a. a benign tumour arising from the fifth cranialnerve and occurring within the internal auditorycanal
b. a benign tumour arising from the eighth cranialnerve and occurring within the internal auditorycanal.
c. a malignant tumour arising from the seventhcranial nerve and occurring within the internal
auditory canal.
d. a malignant tumour arising from the sixth cranial
nerve and occurring within the internal auditory
canal.
b
As the tumour grows there is involvement of the other
cranial nerves so that symptoms such as loss of taste and
ataxia may be present.
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