PDGFRA and glioblastoma: Comparing PDGFRA expression across BRAF, IDH1 and H3F3A mutated glioblastomas, positive expression co-occurred in 50% (10/10) of H3F3A mutated tumors, 27.8% (5/13) of IDH1 mutated tumors and 12.5% (2/16) of BRAF mutated tumors (p = 0.05).