Fig. 1From: Optic glioma and precocious puberty in a girl with neurofibromatosis type 1 carrying an R681X mutation of NF1: case report and review of the literatureMRI showing optic glioma affecting the optic chiasm; left - thickening of the optic nerve (arrowhead), right - glioma at the optic chiasm (arrowhead)Back to article page