CD99 staining of tissue from peripheral<unk>  Classification It is classified into two types, based on location in the body: peripheral<unk>  and CNS<unk> . Peripheral<unk>  The peripheral<unk>  (pPNET) is now thought to be virtually identical to Ewing sarcoma: "Current evidence indicates that both Ewing's sarcoma and<unk>  have a similar neural phenotype and, because they share an identical chromosome translocation, they should be viewed as the same<unk> , differing only in their degree of neural differentiation.<unk> s that demonstrate neural differentiation by light microscopy, immunohistochemistry, or electron microscopy have been traditionally labeled<unk> s, and those that are undifferentiated by these analyses have been diagnosed as Ewing's sarcoma."<unk>  of the CNS Supratentorial central<unk>  in a 5-year-old patient<unk>  of the CNS generally refer to supratentorial<unk> s. * In the past medulloblastomas were considered<unk> s; however, they are genetically, transcriptionally and clinically distinct. As such, "infratentorial"<unk> s are now referred to as medulloblastoma . * Pineoblastomas are embryonal<unk> rs originating in the pineal gland and are likely distinct from supratentorial<unk> s.
Primitive neuroectodermal tumor
Ameloblastoma
Dysembryoplastic neuroepithelial tumour
Pediatric ependymoma
Neurothekeoma
Sialoblastoma
Melanotic neuroectodermal tumor of infancy
Neuroma