Significant differences in T2 values,using T2 mapping relaxation time, were found between glioblastoma andanaplastic astrocytoma, capturing the tumour centre to the peritumoral zone.A similar curve progression from tumour centre to peritumoral zone was foundfor isocitrate dehydrogenase wildtype high grade gliomas in comparison toisocitrate dehydrogenase mutated high grade gliomas. This evidence concerns the gene IDH3A and central nervous system cancer.