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.

Brain Tumor
Copyright © Nucleus Medical Media, Inc.

The exact cause is unknown. Some possible causes of brain tumors include:

  • Heredity
  • Certain occupations
  • Environmental factors
  • Viruses