Neuroectodermal neoplasm

Medical condition

Neuroectodermal tumor

Specialty| Oncology

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

[edit]

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|

* Astrocytoma
* Pilocytic astrocytoma
* Pleomorphic xanthoastrocytoma
* Subependymal giant cell astrocytoma
* Fibrillary astrocytoma
* Anaplastic astrocytoma
* Glioblastoma

|

Oligodendrocyte|

* Oligodendroglioma
* Anaplastic oligodendroglioma

Ependyma|

* Ependymoma
* Subependymoma

Choroid plexus|

* Choroid plexus tumor
* Choroid plexus papilloma
* Choroid plexus carcinoma

Multiple/unknown|

* Oligoastrocytoma
* Gliomatosis cerebri
* Gliosarcoma

Mature
neuron|

* Ganglioneuroma: Ganglioglioma
* Retinoblastoma
* Neurocytoma
* Dysembryoplastic neuroepithelial tumour
* Lhermitte–Duclos disease

CNS embryonal tumors|

* Medulloblastoma
* Atypical teratoid rhabdoid tumor
* Embryonal tumour with multilayered rosettes

Meninges|

* Meningioma
* Hemangiopericytoma

Hematopoietic|

* Primary central nervous system lymphoma

PNS:|

* Neuroblastoma
* Esthesioneuroblastoma
* Ganglioneuroblastoma
* Nerve sheath tumor
* Cranial and paraspinal nerves
* Neurofibroma
* Neurofibromatosis
* Neurilemmoma/Schwannoma
* Acoustic neuroma
* Malignant peripheral nerve sheath tumor

Other|

* WHO classification of the tumors of the central nervous system

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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