Fig. 1From: Serial MRIs provide novel insight into natural history of optic pathway gliomas in patients with neurofibromatosis 1Prevalence of optic glioma per age group. a Total prevalence of OPG per age group. Error bars are 95% confidence intervals of a binomial distribution. b Prevalence of asymptomatic and symptomatic OPGs per age group. Error bars are 95% confidence intervals of a binomial distributionBack to article page