it is suggested that this primary intraorbital , extraocular , primitive neuroectodermal tumour with neuroglial differentiation is akin to the primitive neuroectodermal tumours of the neuraxis , including the cerebellar medulloblastomas , and to some peripheral nerve tumours known as malignant neuroepitheliomas , malignant ependymomas , and neuroblastomas .
C0007765
cerebellar
C0025149
medulloblastomas