Optic glioma and Down's syndrome.
D002648:Child; D003390:Cranial Nerve Neoplasms / Q000150:complications*; D004314:Down Syndrome / Q000150:complications*; D005910:Glioma / Q000150:complications*; D006801:Humans; D008297:Male; D009901:Optic Nerve Diseases / Q000150:complications*