Arachnoid cyst

Case contributed by Dr Ali Abougazia


Repeated loss of consciousness and headache.

Patient Data

Age: 15 years
Gender: Female

A left temporo-frontal extra-axial irregular lesion is seen measuring 8.5 X 6 X 5 cm in orthogonal dimensions. It follows CSF signal on all sequences and shows no enhancement or restricted diffusion. It exerts mass effect in the form of compression of the left temporal and frontal lobes as well as left lateral ventricle and basal ganglia with midline shift. 

Incidentally noted is enlarged adenoid.

Case Discussion

Left temporo-frontal arachnoid cyst.

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Case information

rID: 22703
Published: 17th Apr 2013
Last edited: 30th Nov 2019
Inclusion in quiz mode: Included