Ependymal tumors comprise the groups supratentorial ependymoma NOS, supratentorial ependymoma with ZFTA fusion, supratentorial ependymoma with YAP1 fusion, posterior fossa ependymoma NOS, posterior fossa group A ependymoma (PFA), fosterior fossa group B ependymoma (PFB), spinal ependymoma NOS, spinal ependymoma with MYCN amplification, myxopapillary ependymoma, and subependymoma [1]. This evidence concerns the gene YAP1 and ependymoma.