Trigeminal schwannoma

Case contributed by A.Prof Frank Gaillard

Presentation

Patient presented with diplopia.

Patient Data

Age: Middle aged
MRI

MRI through the brain demonstrates a large cerebellopontine angle mass on the right, with a component extending anteriorly into Meckle's cave. The mass is heterogenous on all sequences, and relatively high signal on T2, with avid contrast enhancement, and areas which are presumably cystic. 

MRI

Annotated image

The mass has a dumbbell configuration, with a component in Meckle's cave (red arrow) and a larger one in the cerebellopontine angle (blue arrow). The fourth ventricle is markedly distorted (yellow arrow), as is the basilar artery (green arrow). 

Case Discussion

This patient went on to have a craniotomy and resection of the mass. Histology confirmed a trigeminal schwannoma. 

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Case information

rID: 10433
Case created: 13th Aug 2010
Last edited: 20th Nov 2015
Inclusion in quiz mode: Included

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