Arachnoid cyst

Case contributed by A.Prof Frank Gaillard


Vague headaches.

Patient Data

Age: 18 years
Gender: Male

A CSF intensity extraaxial space is located on the right, extending from the anterior most aspect of the middle cranial fossa up into the Sylvian fissure. It measures a 30 x 58 x 87mm and follow CSF on all sequences. The overlying bone is remodelled and thinned. No solid component. No enhancement. The remainder of the brain is unremarkable with no intra or extra-axial abnormality.


Features are characteristic of an arachnoid cyst.

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Case information

rID: 28038
Published: 6th Mar 2014
Last edited: 30th Nov 2019
Inclusion in quiz mode: Included

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