Epidermoid cyst - cerebellopontine angle

Case contributed by A.Prof Frank Gaillard

MR Brain

Characteristic appearance of an epidermoid cyst in the cerebellopontine angle. The lesion has a similar signal intensity to CSF on both T1 and T2 weighted sequences but is 'dirty' on FLAIR. The diagnosis is confirmed on DWI which demonstrates very bright signal with intermediate ADC values similar to brain parenchyma.

Case Discussion

This is the most common appearance of intracranial epidermoid cysts

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Case information

rID: 9772
Published: 23rd May 2010
Last edited: 27th Apr 2018
Tag: cpa
Inclusion in quiz mode: Included

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