Second, only ependymoma-afflicted patients hospitalized after 2017 in our series had been screened for C11orf95-RELA fusion, and YAP1 fusions analysis was not included in the present series; further prospective multicenter studies are needed to investigate the incidence of C11orf95-RELA and YAP 1 fusion in CEs. The gene discussed is RELA; the disease is cat-eye syndrome.