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Oligodendroglioma arise mainly in the frontal lobe and in 50–80% of cases, the first symptom is the onset of seizure activity, without having any symptoms beforehand. [2] Headaches combined with increased intracranial pressure are also a common symptom of oligodendroglioma.
Anaplastic oligodendroglioma is a neuroepithelial tumor which is believed to originate from oligodendrocytes, a cell type of the glia. In the World Health Organization (WHO) classification of brain tumors, anaplastic oligodendrogliomas are classified as grade III. [ 2 ]
Gliomatosis cerebri is most often caused by glioblastoma, but can also arise from astrocytoma, oligodendroglioma or other types of diffuse glioma. [2] Other pathologies such as vasculitis , encephalitis or leukoencephalopathy may also cause similar radiological findings.
Dysembryoplastic neuroepithelial tumour (DNT, DNET) is a type of brain tumor.Most commonly found in the temporal lobe, DNTs have been classified as benign tumours. [1] These are glioneuronal tumours comprising both glial and neuron cells and often have ties to focal cortical dysplasia.
In a 2008 review of the latter two categories, atypical and anaplastic-meningioma cases, the mean overall survival for atypical meningiomas was found to be 11.9 years vs. 3.3 years for anaplastic meningiomas. Mean relapse-free survival for atypical meningiomas was 11.5 years vs. 2.7 years for anaplastic meningiomas. [25]
Langenscheidt dictionaries in various languages A multi-volume Latin dictionary by Egidio Forcellini Dictionary definition entries. A dictionary is a listing of lexemes from the lexicon of one or more specific languages, often arranged alphabetically (or by consonantal root for Semitic languages or radical and stroke for logographic languages), which may include information on definitions ...
Heart disease and cardiovascular disease have almost the same meaning. However, heart disease specifically refers to conditions affecting the heart, while cardiovascular disease is a broader term ...
Primitive neuroectodermal tumor is a malignant (cancerous) neural crest tumor. [1] It is a rare tumor, usually occurring in children and young adults under 25 years of age.. The overall 5 year survival rate is about