Oculomotor nerve schwannoma

Case contributed by Dr Mark Holland

Presentation

Left third cranial nerve palsy

Patient Data

Age: 50 years
Gender: Male
MRI

A vividly enhancing nodule is in line with the oculomotor nerve, and most likely represents a schwannoma. 

Case Discussion

Although schwannomas most commonly affect the vestibular cochlear nerve (see acoustic schwannoma) they can involve any of the cranial nerves (except CN I and II). In this case oculomotor nerve is affected. 

Histological proof is often not available for some of these tumours as until mass effect necessitates it, resection will result in a cranial nerve palsy and in this case diplopia etc... 

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Case information

rID: 19778
Case created: 11th Oct 2012
Last edited: 10th Apr 2017
Inclusion in quiz mode: Included

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