Source:http://linkedlifedata.com/resource/umls/id/C0796418
NCI: 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.,NCI: A glioma that affects the optic tract. This condition can be seen in association with neurofibromatosis 1. It is most commonly seen in the pediatric age group.