MRCP UK EXAMINATIONS

NEUROLOGY

SURGERY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An acoustic neuroma is a benign tumor of the ____ nerve.
A
fourth
B
fifth
C
seventh
D
eighth
Explanation: 

Detailed explanation-1: -An acoustic neuroma (vestibular schwannoma) is a benign tumor that develops on the balance (vestibular) and hearing, or auditory (cochlear) nerves leading from your inner ear to the brain, as shown in the top image. The pressure on the nerve from the tumor may cause hearing loss and imbalance.

Detailed explanation-2: -An acoustic neuroma is a tumor that grows from the nerves responsible for balance and hearing. These tumors grow from the sheath covering the vestibulocochlear nerve. Acoustic neuromas are benign (not cancer) and usually grow slowly. Over time the tumor can cause gradual hearing loss, ringing in the ear, and dizziness.

Detailed explanation-3: -Most acoustic neuromas occur on the vestibular portion of the eighth cranial nerve. Because these tumors are made up of Schwann cells and usually occur on the vestibular portion of the eighth cranial nerve, many physicians prefer the use of the term vestibular schwannoma.

There is 1 question to complete.