“A glioma is a type of tumor that starts in the brain or spine. It is called a glioma because it arises from glial cells. The most common site of gliomas is the brain.”

Glioma of the left parietal lobe. CT scan with contrast enhancement.

“Today, researchers are finding evidence that a category of glial cells, termed astrocytes, play an active role in brain function by promoting the activity of neurons.”
Image and text copyright © Dennis Kunkel.