1st April 2022

A 55-year-old man presents with a one-month history of hearing loss

A 55-year-old man presents with a one-month history of hearing loss. An audiogram demonstrates high-frequency sensorineural left-sided hearing loss. The patient also reports some tinnitus on that side. A CT head is done, which demonstrates a single contrast-enhancing lesion within the internal auditory canal.

Which of the following investigations would confirm the most likely diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.