A single case report described a FGFR1 mutation by pyrosequencing (FGFR1 N546K) but no large pediatric low grade gliomas (pLGG) cohort studying FGFR1 mutational status have included some PGNT investigating FGFR1 mutation in PGNT [11]. The gene discussed is FGFR1; the disease is glioma.