Presentation
Headache
Patient Data
Age: 15 years
Gender: Male
From the case:
Arachnoid cyst
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Extra axial CSF signal intensity lesion seen in anteromedial aspect of floor of left middle cranial fossa floor with no significant pressure signs.
From the case:
Arachnoid cyst
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Zoomed T2 weighted images depicting the arachnoid cyst.
Case Discussion
This is a type 1 Arachnoid cyst. Generally asymptomatic and is an incidental imaging finding. Refer to the Galassi classification of middle cranial fossa arachnoid cysts for stratification.
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