Arachnoid cyst located in Ambient cistern

Case contributed by Dr Mehmet Yağtu


The patient had headache for two weeks.

Patient Data

Age: 25 years
Gender: Female

There is an extra-axial cystic lesion that has mass effect on the medial aspect of the left temporal lobe and CSF enlargement of the left ambient cistern and separated from CSF with thin thread-like thin tissue. There is no post-contrast enhancement, gliosis or edema.

Case Discussion

In differential diagnosis; Choroid fissure cyst, epidermoid cyst and enlargement of perivasculer spaces could be thought. But this lesion has no diffusion restricted in DWI and ADC sequence, besides located in extra-axial space.

PlayAdd to Share

Case information

rID: 67415
Published: 9th Apr 2019
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included
Institution: private dogus hospital

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.