Astrocytoma is type of cancerous brain tumor. This type of tumor begins from small, star-shaped cells in the brain called astrocytes. Astrocytes are one of several types of supporting cells in the brain. These types of cells are called glial cells. An astrocytoma is a type of the larger group of brain tumors called gliomas.
Astrocytoma may occur anywhere in the brain, but particularly the cerebrum in adults and the optic nerves in children.
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Last reviewedJune 2013by Mohei Abouzied, MD; Michael Woods, MD
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