Neuroectodermal neoplasm

Medical condition
Neuroectodermal tumor
SpecialtyOncology

A neuroectodermal neoplasm is a neoplasm or tumor of the neuroectoderm.[1] They are most commonly tumors in the central or peripheral nervous system.[citation needed]

Tumors exhibiting neuroectodermal differentiation are classified into two main groups:[2]

  • Group I tumors/neoplasms: neuroendocrine carcinomas. These show predominantly epithelial differentiation. They include pituitary adenoma and carcinoid tumor
  • Group II tumors/neoplasms: nonepithelial neuroectodermal neoplasms. These are predominantly neural in origin. They include malignant melanoma, olfactory neuroblastoma and Ewing's sarcoma.

References

  1. ^ Neuroectodermal tumor entry in the public domain NCI Dictionary of Cancer Terms
  2. ^ Mills, Stacey E (2002). "Neuroectodermal Neoplasms of the Head and Neck with Emphasis on Neuroendocrine Carcinomas". Modern Pathology. 15 (3): 264–278. doi:10.1038/modpathol.3880522. ISSN 0893-3952. PMID 11904342.
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Tumours of the nervous system
Endocrine
Sellar:
  • Craniopharyngioma
  • Pituicytoma
Other:
  • Pinealoma
CNS
Neuroepithelial
(brain tumors,
spinal tumors)
Glioma
Astrocyte
Oligodendrocyte
Ependyma
Choroid plexus
Multiple/unknown
Mature
neuron
CNS embryonal tumors
Meninges
Hematopoietic
PNS:Other
Note: Not all brain tumors are of nervous tissue, and not all nervous tissue tumors are in the brain (see brain metastasis).
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