FGFR1 and glioblastoma: Singh et al. reported FGFR3-TACC3 and FGFR1-TACC1 gene fusions in 3% GBM [28] The FGFR3-TACC3 fusion might be suspected on SNP arrays by detecting focal gains involving FGFR3 (chr 4p16.3).