Primary tumours of the optic nerve in von Recklinghausen's disease.
D005910:Glioma; D006801:Humans; D009369:Neoplasms; D017253:Neurofibromatoses / Q000150:complications*; D009456:Neurofibromatosis 1; D009900:Optic Nerve
GLIOMA; NERVES, OPTIC/neoplasms; NEUROFIBROMATOSIS/complications