visual pathway glioma

Definition of visual pathway glioma
National Cancer Institute

visual pathway glioma

(VIH-zhoo-ul ... glee-OH-muh)
A rare, slow-growing tumor that usually forms in the optic nerve, optic chiasm, or optic tract. These are parts of the nervous system that carry messages from the eye to the brain. Also called optic pathway glioma.

Source: NCI Dictionary of Cancer Terms