star1
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A 49-year-old woman is in an automobile accident and sustains a closed
head injury. A CT scan does not show any intracranial hemorrhage, but
reveals a small tumor at the cerebellopontine angle of the brain .
Which of the following nerves is most likely to be affected by
this tumor?
A. Facial nerve
B. Glossopharyngeal nerve
C. Optic nerve
D. Trigeminal nerve
E. Vagus nerve
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| vanshita
Forum Guru
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A & D?
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| yasmeen
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A
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| sridevibandaru24
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Facial nerve
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| r_albayunen
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its A
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| robin082006
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I go with D
Tumor Damage in the cerebellopontine angle may affect CN VIII and V (especially sensosy)
Acoustic Schwannoma is often located at this site.
Edited by robin082006 on 04/21/06 - 09:30 AM
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| xwxf
Forum Senior
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Top 5 tumors in cerebellopontine angle are Schwannoma(75%), arachnoid cyst, meningioma, ependymoma, epidermoid.
Schwannoma sometimes is picked up by accident. It affects CN VIII.
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| r_albayunen
Forum Senior
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cerebellopontine angle nerves .. VI, VII, and VIII ..
VII and VIII course together throught the internal acoustic meatus ....
trigeminal nerve is way up in pons .. i think it will be impossible to affect it ..
star1??
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| robin082006
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albayunen,
My preference is Goljan Rapid review, please review!
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The Key to Succeed is Patience.
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| yasmeen
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nice explainations whats the answer star1?
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| r_albayunen
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Pontocerebellar Angle syndrome:
Caused by an acoustic neuroma (schawnnoma) of VIII. Slow growing tumor which originiates from schawnn cells. As the tumor grows, it exerts pressure on the lateral part of the caudal pons where CN VII emerges !! but can also expands anteriorly to compress V nerve .. but looking forward there is evidence that it first compresses VII then V ...
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| docsnq
Forum Newbie
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I will go for A facial nerve.
star...what is the correct ans
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| leen
Forum Guru
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star can u pl post the correct ans?
thanks
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| star1
Forum Guru
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I pick up this Q from another forum and there was the same situation ...... I will go for A
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| madavank
Forum Newbie
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yeah....it's A...
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| nadiabarati
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of course A
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