There were differences between the different molecular groups (IDH mutated/1p19q co-deleted vs IDH mutated vs IDH wild-type) when it came to the distance from SVZ to tumor, but only when measured from tumor center (p = 0.033, median distance 20.7 mm vs 16.5 mm vs 14.8 mm) and not from tumor border (p = 0.797, median distance was 0 mm for all groups) (Fig. 2a). Here, IDH1 is linked to neoplasm.