Fig. 1

A: Included information in the Ivy Glioblastoma Atlas Project (Ivy GAP) database: I) Resected Tumor Image II) divided in tissue blocks; and III) Histopathological images at cellular resolution of hematoxylin and eosin-stained sections. B: I) Example of an H&E image of a slide from a resected block. II) The same image labeled with the different tissues and structures. Microvascular proliferation corresponds with areas in red color. (Images from Ivy GAP database [27], patient W55, block F, slice F.02). * OCT: Optimal Cutting Temperature compound. The term ‘OCT base’ is used to refer to the formed block after frozen and before sectioning