Arachnoid cyst

Case contributed by Hani Makky Al Salam
Diagnosis almost certain

Presentation

Nausea and headache refractory to medication.

Patient Data

Age: 55 years
Gender: Male
ct

Left anterior temporal fossa cystic lesion.

mri

Left anterior temporal fossa extra-axial cystic lesion following the CSF signal intensity on all pulse sequences, in keeping with arachnoid cyst. 

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