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1.

Ependymoma

Ependymomas are rare glial tumors of the brain and spinal cord (Yokota et al., 2003). [from GTR]

MedGen UID:
41825
Concept ID:
C0014474
Neoplastic Process
2.

Ependymoma

The presence of an ependymoma of the central nervous system. [from HPO]

MedGen UID:
505390
Concept ID:
CN002611
Finding
3.

Recurrence

The return of a sign, symptom, or disease after a remission. [from MeSH]

MedGen UID:
416712
Concept ID:
C2825055
Pathologic Function
4.

Much

A subjective response indicating that something is or was a large amount. [from NCI]

MedGen UID:
923949
Concept ID:
C4281574
Finding
5.

Independent

MedGen UID:
721426
Concept ID:
C1299583
Finding
6.

Pathogenesis

The pathologic, physiologic, or biochemical mechanism resulting in the development of a disease or morbid process. [from NCI]

MedGen UID:
195936
Concept ID:
C0699748
Pathologic Function
7.

Metastasis

The spread or migration of cancer cells from one part of the body (the organ in which it first appeared) to another. The secondary tumor contains cells that are like those in the original (primary) tumor. [from NCI]

MedGen UID:
45032
Concept ID:
C0027627
Neoplastic Process
8.

Intracranial Neoplasm

A benign or malignant neoplasm that arises from or metastasizes to structures within the cranium. This includes meningeal and other tumors that occur in the spaces that surround the brain, and neoplasms of the brain. [from NCI]

MedGen UID:
287152
Concept ID:
C1527390
Neoplastic Process
9.

Epithelial Neoplasm

A benign or malignant neoplasm that arises from and is composed of epithelial cells. This category include adenomas, papillomas, and carcinomas. [from NCI]

MedGen UID:
277963
Concept ID:
C1368683
Neoplastic Process
10.

Cancer, Embryonal

MedGen UID:
199639
Concept ID:
C0751364
Neoplastic Process
11.

Ependymoastrocytoma

MedGen UID:
155907
Concept ID:
C0751677
Neoplastic Process
12.

Polar Spongioblastoma

A lesion characterized by the presence of neoplastic neuroepithelial cells with palisading nuclei. This lesion implies a morphologic growth pattern and it is not considered a clinicopathological entity. [from NCI]

MedGen UID:
154309
Concept ID:
C0555199
Neoplastic Process
13.

Myxopapillary Ependymoma

A slow growing, WHO grade I glioma which generally occurs in young adults. It arises almost exclusively in the conus medullaris, cauda equina, and filum terminale of the spinal cord. It generally has a favorable prognosis and is characterized histologically by tumor cells arranged in a papillary manner around vascularized mucoid stromal cores. (Adapted from WHO). [from NCI]

MedGen UID:
104717
Concept ID:
C0205769
Neoplastic Process
14.

Astroblastoma

A rare glial neoplasm more commonly found in young adults. It is characterized by tumor cells with characteristics suggestive of an astrocytic origin (positive for GFAP), arranged perivascularly. The cells have broad, non-tapering processes radiating towards a central blood vessel. The biologic behavior of astroblastomas is variable, so no WHO grade has been established, yet. (Adapted from WHO.) [from NCI]

MedGen UID:
90811
Concept ID:
C0334587
Neoplastic Process
15.

Papillary Ependymoma

A rare variant of ependymoma characterized by well formed papillae. Tumor cell processes abutting capillaries are usually GFAP-positive. Differential diagnoses include choroid plexus papilloma, papillary meningioma and metastatic papillary carcinomas. (Adapted from WHO) [from NCI]

MedGen UID:
90810
Concept ID:
C0334578
Neoplastic Process
16.

Neoplasm of the central nervous system

A benign or malignant, primary or metastatic neoplasm that affects the brain, meninges, or spinal cord. Representative examples of primary neoplasms include astrocytoma, oligodendroglioma, ependymoma, and meningioma. Representative examples of metastatic neoplasms include carcinoma and leukemia. [from NCI]

MedGen UID:
88335
Concept ID:
C0085136
Neoplastic Process
17.

Neuroepithelial neoplasm

A neoplasm composed of neural epithelium, not necessarily a neoplasm located in the neural epithelium or neuroepithelium. [from HPO]

MedGen UID:
60215
Concept ID:
C0206715
Neoplastic Process
18.

Neuroectodermal neoplasm

A neoplasm arising in the neuroectoderm, the portion of the ectoderm of the early embryo that gives rise to the central and peripheral nervous systems, including some glial cells. [from HPO]

MedGen UID:
60072
Concept ID:
C0206093
Neoplastic Process
19.

Neoplasm of the nervous system

A benign or malignant, primary or metastatic neoplasm involving the central or peripheral nervous system. [from NCI]

MedGen UID:
45046
Concept ID:
C0027766
Neoplastic Process
20.

Embryonal neoplasm

A usually malignant neoplasm composed of primitive (immature) tissues that resemble fetal tissues. Medulloblastoma, Ependymoblastoma, Pineoblastoma, and Wilms tumor are representative embryonal neoplasms. --2003 [from NCI]

MedGen UID:
45034
Concept ID:
C0027654
Neoplastic Process
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