MYBL1 and diffuse astrocytoma: Pediatric type diffuse low-grade gliomas include four entities characterized by a diffuse growth pattern.Angiocentric glioma; diffuse astrocytoma, MYB- or MYBL1-altered; polymorphous low-grade neuroepithelial tumour of the young (PLNTY); diffuse low-grade glioma, MAPK pathway–alteredtumors are listed among pediatric-type diffuse low-grade gliomas.