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Mega cisterna magna

Case contributed by Mohammad Saboor Rastin
Diagnosis almost certain

Presentation

Sometimes headache.

Patient Data

Age: 40 years
Gender: Male
ct

There is a prominent retrocerebellar cerebrospinal fluid (CSF) containing space. Normal vermis, normal 4th ventricle, and normal cerebellar hemispheres are appreciated. The rest of the study appears unremarkable.

Case Discussion

The CT features are suggestive of mega cisterna magna.

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