Pilocytic astrocytoma

Case contributed by Frank Gaillard



Patient Data

Age: 12 years
Gender: Male

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

MRI brain


Selected images from an MRI of the posterior fossa demonstrates a cystic mass with peripheral nodular enhancement. It arises form the right cerebellar hemisphere, displacing and compressing the fourth ventricle. It is surrounded by vasogenic edema. No flow voids are noted. 

Case Discussion

A cystic mass with mural enhancement in a child arising from the cerebellar hemisphere is usually a pilocytic astrocytoma. This patient went on to have a craniotomy and resection which confirmed the diagnosis. 

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