Pilocytic astrocytoma

Case contributed by Professor Ali Hekmatnia



Patient Data

Age: 15 Years
Gender: Male

Contrast-enhanced MRI demonstrating a well defined heterogenous and peripherally enhancing multilobulated thick-walled tumor with a small cystic center within the left cerebellopontine angle. The mass abuts the cisternal seventh and eight cranial nerves and their nerve root entry zone. This appears to have mass effect on fourth ventricle, and adjacent dural enhancement.

Case Discussion

After MR imaging the mass was excised and histopathologic findings confirmed pilocytic astricytoma. Leptomeningeal dissemination ("drop metastases") at diagnosis is extremely rare but has been reported at time of recurrence.

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Case information

rID: 67604
Published: 14th May 2019
Last edited: 15th May 2019
Inclusion in quiz mode: Included
Institution: Isfahan University of Medical Sciences

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