Acoustic neuroma

Question 1

What is an acoustic neuroma

Answer 1

Benign tumour of the Schwann cells surrounding vestibulocochlear nerve. AKA vestibular schwannoma

Question 2

Acoustic neuroma presentation

Answer 2

40-60 yrs gradual onset unilateral sensorineural hearing loss, unilateral tinnitus, dizziness + fullness of ear

Question 3

Acoustic neuroma pathophysiology

Answer 3

Usually unilateral. Bilateral acoustic neuromas associated with neurofibromatosis type 2 (genetic condition where benign tumours grow along nerves)
Can be associated with facial nerve palsy if tumour grows large enough

Question 4

Acoustic neuroma investigations

Answer 4

Audiometry to assess hearing loss

Brain CT or MRI (preferred)

Question 5

Acoustic neuroma management

Answer 5

Monitoring if small and minor symptoms
Surgery to remove tumour
Radiotherapy to reduce growth