In accordance with our data, Qaddoumi et al. reported FGFR1 hotspot mutations only in DNT and diffuse oligodendroglial tumors, while DA instead contained one FGFR1 fusion and two FGFR1 TKD duplications (Qaddoumi et al. 2016). The gene discussed is FGFR1; the disease is oligodendroglial tumor.