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ENT · Otology
Sample itemWhat is the investigation of choice for a suspected vestibular schwannoma (acoustic neuroma)?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. MRI with gadolinium contrast
Unilateral sensorineural hearing loss, tinnitus and imbalance suggest a vestibular schwannoma at the cerebellopontine angle. Gadolinium-enhanced MRI detects even small intracanalicular tumours. Audiometry is the initial screen, and bilateral tumours suggest neurofibromatosis type 2.
Option by option
A. Pure tone audiometry alone
Audiometry shows hearing loss but does not identify the cause.
B. MRI with gadolinium contrast (correct)
Correct. It is the most sensitive test for small tumours.
C. Non-contrast CT of the head
Non-contrast CT misses small tumours.
D. Plain X-ray of the skull
Plain X-rays do not show soft-tissue tumours.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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