glial tumor

glial tumor

Neurology A 1º CNS tumor arising in neurons and neural processes. See Brain tumor.
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3) Differential imaging considerations, including hemangioblastoma, glial tumor, primitive neuroectodermal tumor , subacute infarct, cerebellitis, or tumefactive demyelination are limited by the pathognomonic appearance on MRI, though recently there have been several case reports of infiltrating medulloblastoma mimicking Lhermitte-Duclos disease in both pediatric and adult patients.
Cerebral Tuberculoma Mimicking High Grade Glial Tumor.
Benign Tumors Vestibular Schwanomma 78 Tigeminal Schwanomma 6 Other Schwanomma 5 Gliomas Grade I 6 Meningioma 169 Pituitary Adenoma (Secreting) 25 Pituitary Adenoma (Non-Secreting) 42 Pineal Region Tumor 1 Hemangioblastoma 2 Craniopharyngioma 1 Glomus Tumor 5 Other Benign Tumors 43 Total 383 Malignant Tumors Malignant Glial Tumor (II, III, IV) 60 Metastatic Tumor 192 Oligodendriogliomas 5 Hemangiopericytoma 1 Other Malignant Tumors 16 Total 274 Total Tumors 657 Vascular Disorders AVM's 91 Cavernous Angioma 3 Total 94 Functional Disorders Trigeminal Neuralgia 18 Total 18 Total Indications 769 Table 2.
Unlike glia, glial tumor cells are excitable, expressing voltage-gated sodium channels that generate spikes.
It is a rare glial tumor that usually appears submucosally as a pedunculated mass in the midline, attached to the nasal septum.
Although they are the most common intramedullary glial tumor in adults, ependymomas are the second most common spinal cord neoplasms in children.
The discovery of an IDH mutation or H3 mutation in a glial tumor argues strongly against the diagnosis of a poorly infiltrative glioma.
The lesion, despite some similarities (clusters of voluminous neurons with thick bundles of nerve cell processes) is completely different from a tumoral ganglioneuroma or a cerebellar ganglioglioma in which variable architecture discloses proliferation of both abnormal neurons and glial tumor cells.
Synaptophysin or neuron-specific enolase positivity on immunohistochemistry, or the presence of typical or abortive synapses, neurosecretory granules or neuritic processes on ultrastructural examination, demonstrate the neuronal lineage of the tumor cells, not found in glial tumor and support the diagnosis of CN (p.
CONCLUSIONS: In the present study glial tumors are most frequent neoplasm and Ashocytoma is the most common glial tumor reported.
Primary glial tumor of the retina with features of myxopapillary ependymoma.