Axial MR images of glioblastomas from 8 different patients, IDH mutant (A–D) and chromosome 7/10 aneuploid (E–H). T2-weighted FLAIR images (left) are shown beside corresponding T1-weighted postcontrast images (right). Relative probabilities of IDH mutation (Prob. IDH) and chromosome 7/10 aneuploidy (Prob. 7/10) generated from random forest regression models are shown for image set of images.