Pilomyxoid astrocytoma of the brainstem
Francisco Otavio Pereira1, Ismael Augusto Lombardi, Adriana Yuki Mello
1Division of Neurosurgery.
Abstract:
A pilomyxoid astrocytoma is a recently described tumor that occurs predominantly in the hypothalamic-chiasmatic region and is rarely found elsewhere. It has similar features as pilocytic astrocytomas, but has distinct histological characteristics and a poorer prognosis. A pilomyxoid astrocytoma is an aggressive tumor, and increased awareness is necessary with a suspect case. We present the first case of a pilomyxoid astrocytoma of the brainstem described after the newest World Health Organization classification of central nervous system tumors.
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