ependymoma


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ependymoma

 [ĕ-pen″dĭ-mo´mah]
a tumor composed of differentiated ependymal cells; most are slow growing and benign, but occasionally one is malignant.

e·pen·dy·mo·ma

(ĕ-pen'di-mō'mă),
A glioma derived from relatively undifferentiated ependymal cells, comprising approximately 1-3% of all intracranial neoplasms; ependymomas occur in all age groups and may originate from the lining of any of the ventricles or, more commonly, from the central canal of the spinal cord; histologically, the neoplastic cells tend to be arranged radially about blood vessels, to which they are attached by means of fibrillary processes.

ependymoma

/epen·dy·mo·ma/ (ĕ-pen″dĭ-mo´mah) a neoplasm, usually slow growing and benign, composed of differentiated ependymal cells.

ependymoma

[ipen′dimō′mə]
Etymology: Gk, ependyma, an upper garment, oma, tumor
a neoplasm composed of differentiated cells of the ependyma. The tumor, which is usually a benign pale, firm, encapsulated, somewhat nodular mass, commonly arises from the roof of the fourth ventricle and may extend to the spinal cord. Primary lesions may also develop in the spinal cord. Also called ependymocytoma.
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Ependymoma

ependymoma

Ependymal tumor Neurology An indolent ependymal cell–brain tumor, that arises in the walls of the ventricles–lateral, 3rd, 4th and central canal of the spinal cord. See Myxopapillary ependymoma.

e·pen·dy·mo·ma

(ĕ-pen'di-mō'mă)
A glioma derived from relatively undifferentiated ependymal cells; ependymomas may originate from the lining of any of the ventricles or, more commonly, from the central canal of the spinal cord.

ependymoma

A tumour of the supporting (glial) tissue of the brain. See also GLIOMA.

e·pen·dy·mo·ma

(ĕ-pen'di-mō'mă)
Glioma derived from relatively undifferentiated ependymal cells, comprising approximately 1-3% of all intracranial neoplasms; occurs in all age groups and may originate from the lining of any of the ventricles or, more commonly, from the central canal of the spinal cord.

ependymoma

fleshy masses protruding into the third ventricles, the central canal in the medullary region or the central spinal canal; arise from the ependyma.
References in periodicals archive ?
The goal of Sawyerfest is to raise awareness and funds to support the fight against ependymoma.
The intramedullary cord ependymoma in children is usually seen in the setting of neurofibromatosis type 2.
MR characteristics of histopathologic subtypes of spinal ependymoma.
Impairment of intellectual functions after surgery and posterior fossa irradiation in children with ependymoma is related to age and neurologic complications.
IQR increases of modeled CO were positively associated with ALL, retinoblastoma (overall and bilateral only), and germ cell tumors; increases in PNET, ependymomas, and NHL were also observed.
External ventricular drain inserted 6 6 22 Thalamic Tumour resection astrocytoma (only 75% excised with preservation of the corticospinal cord attempted) 7 8 24 AVM Excision of AVM 8 3 20 Ependymoma Tumour resection 9 4 31.
It's for three-year-old Caoimhe Neeson, who has anaplastic ependymoma with spinal metastases, a grade three malignant brain tumour.
Meningioma [Figure 2] arises from the arachnoid cells of the arachnoid villi in the meninges, whilst ependymoma arises from opendyma.
Despite surgery followed by chemotherapy the aggressive tumour, called an anaplastic ependymoma, returned and Thomas had to go through a second brain operation three weeks ago.
Within three months the aggressive tumour, called an anaplastic ependymoma, returned and Thomas had to go through a second brain operation three weeks ago to remove the cancer.
Radiological diagnosis of intradural lipoma and differential diagnosis of dermoid tumour, teratoma or complex mucinous myxopapillary ependymoma was offered.
Academics at the University of Nottingham hope the breakthrough will mean improved drugs can be manufactured to treat ependymoma, the third most common form of brain cancer in children.