Another case (#06), with a FGFR1 alteration, without 1p deletion, and a MC of diffuse pediatric high-grade glioma, RTK1 type, subtype A with a calibrated score of 0.25 was reclassified as a spinal PA by t-SNE analysis (Figs. 1, 3 and Supplementary Fig. 3, online resource). Here, FGFR1 is linked to glioma.