Dysembryoplastic neuroepithelial tumour (DNET) is the second most common type of LGNT.5 With its cortex location and multinodular architecture, DNETs exhibit a histological hallmark of pathogenic giloneuronal element, formed by oligodendrocyte-like tumour cells (OLCs) and floating entrapped cortical neurons.5,6 Alterations in fibroblast growth factor receptor 1 (FGFR1) (intragenic duplication, mutation or rearrangement) are frequent in DNET.7,8. This evidence concerns the gene FGFR1 and dysembryoplastic neuroepithelial tumor.