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Neuroectodermal Tumors, Primitive MeSH Descriptor Data 2025
A group of malignant tumors of the nervous system that feature primitive cells with elements of neuronal and/or glial differentiation. Use of this term is limited by some authors to central nervous system tumors and others include neoplasms of similar origin which arise extracranially (i.e., NEUROECTODERMAL TUMORS, PRIMITIVE, PERIPHERAL). This term is also occasionally used as a synonym for MEDULLOBLASTOMA. In general, these tumors arise in the first decade of life and tend to be highly malignant. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2059)
Entry Term(s)
Cerebral Primitive Neuroectodermal Tumor
Ependymoblastoma
Medulloepithelioma
Neoplasms, Primitive Neuroepithelial
Neuroectodermal Tumor, Primitive
Neuroepithelial Neoplasms, Primitive
Neuroepithelial Tumors, Primitive
PNET
Primitive Neuroepithelial Neoplasms
Spongioblastoma
Previous Indexing
Neoplasms, Germ Cell and Embryonal (1979-1993)
Public MeSH Note
2000; see NEUROECTODERMAL TUMOR, PRIMITIVE 1994-1999
A group of malignant tumors of the nervous system that feature primitive cells with elements of neuronal and/or glial differentiation. Use of this term is limited by some authors to central nervous system tumors and others include neoplasms of similar origin which arise extracranially (i.e., NEUROECTODERMAL TUMORS, PRIMITIVE, PERIPHERAL). This term is also occasionally used as a synonym for MEDULLOBLASTOMA. In general, these tumors arise in the first decade of life and tend to be highly malignant. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2059)