Mega cisterna magna

Case contributed by A.Prof Frank Gaillard
CT

Prominent retrocerebellar CSF space. 

MRI

Large retrocerebellar space that follows CSF signal on all sequences. Normal cerebellar vermis. 

Case Discussion

Incidental mega cisterna magna. Images at higher levels confimed the presence of a normal posterior fossa and vermis distinguishing it from a Dandy-Walker malformation.

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Case information

rID: 4584
Case created: 18th Sep 2008
Last edited: 25th Oct 2015
Inclusion in quiz mode: Included

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