Arachnoid cyst

Case contributed by Dr Ali Abougazia

Presentation

Repeated loss of consciousness and headache.

Patient Data

Age: 15
Gender: Female
Modality: MRI

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 in all sequences and show 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
Case created: 17th Apr 2013
Last edited: 22nd Jan 2016
Inclusion in quiz mode: Included

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