isocitrate dehydrogenase/huvudvärk

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A population-based study of low-grade gliomas and mutated isocitrate dehydrogenase 1 (IDH1).

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Low-grade gliomas (LGG) have a slow growth rate, but transformations into malignant gliomas with a rapid deterioration occur in many patients. The aim of this study was to evaluate clinical prognostic factors in a population-based cohort of patients with LGG. In addition we investigated the

Dysembryoplastic neuroepithelial tumor-like neoplasm of the septum pellucidum: review of 2 cases with chromosome 1p/19q and IDH1 analysis.

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Dysembryoplastic neuroepithelial tumor (DNT)-like neoplasms of the septum pellucidum are extremely rare. We reviewed 2 cases of DNT-like neoplasm of the septum pellucidum and specifically studied the immunohistochemical features and chromosomes 1p and 19q deletions. One case was a 26-year-old woman

Papilloedema secondary to oligodendroglioma.

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Oligodendrogliomas are rare slow-growing asymptomatic glial tumours that usually present in patients in their fourth to sixth decades of life. Neurological symptoms that may present include nausea, headache, vomiting, diplopia, confusion, focal weakness, numbness and seizures. The treatment of

Transdural Propagation of Glioblastoma Through Foramen Rotundum.

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BACKGROUND Glioblastoma, also known as glioblastoma multiforme, is the most common primary malignant cerebral tumor in adults. Although glioblastoma multiforme is one of the most aggressive tumors in the brain, propagation through the dura mater is rare. METHODS A 59-year-old man presented with

Concurrent IDH1 and SMARCB1 Mutations in Pediatric Medulloblastoma: A Case Report.

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Isocitrate Dehydrogenase-1 (IDH1) is a driver gene in several cancers including brain tumors such as low-grade and high-grade gliomas. Mutations of SMARCB1 were described in atypical teratoid rhabdoid tumors and to date have not been associated with the pathogenesis of medulloblastoma. We report

Combined "Infiltrating Astrocytoma/Pleomorphic Xanthoastrocytoma" Harboring IDH1 R132H and BRAF V600E Mutations.

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Pleomorphic xanthoastrocytoma (PXA) has rarely been reported in combination with infiltrating glioma, historically interpreted as a "collision tumor." Isocitrate dehydrogenase 1 (IDH1) and BRAF V600E mutations are usually not concurrent. The former is typical of adult infiltrating gliomas, and the

Primary Focal Intracranial Leptomeningeal Glioma: Case Report and Review of the Literature.

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BACKGROUND Primary focal intracranial leptomeningeal glioma (PFILG) is considered a rare solitary glial tumor arising from the leptomeninges without brain attachment or evidence of primary neoplasm elsewhere within the neuraxis. We report a case of PFILG in a left parietal location and provide a

Features of intraventricular tanycytic ependymoma: report of a case and review of literature.

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Tanycytic ependymoma is the rarest variant of ependymoma and occurs primarily in the spinal cord. Intracranial cases are even rarer. Only 9 ventricular and 5 subcortical tanycytic ependymoma have been reported in the literature. Amongst the 9 ventricular cases, only one tumor arose from the third

Intraventricular Epithelioid Glioblastoma: A Case Report.

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BACKGROUND Epithelioid glioblastoma, a high-grade, diffuse astrocytic tumor variant, comprises closely packed epithelioid cells and rhabdoid cells. This rare tumor usually develops in the cerebral cortex and diencephalon; however, in the case reported here, it was located

Case Report of Complete Radiological Response of a Thalamic Glioblastoma After Treatment With Proton Therapy Followed by Temozolomide and Tumor-Treating Fields.

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Glioblastoma (GBM) is the most common and aggressive primary brain tumor in adults. We present a case of a 42-year-old male patient presenting with headache and vomiting. Imaging demonstrated obstructive hydrocephalus and a ring-enhancing lesion in the right posterior thalamus. After endoscopic

Rosette-forming glioneuronal tumor: a pineal region case with IDH1 and IDH2 mutation analyses and literature review of 43 cases.

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Rosette-forming glioneuronal tumor (RGNT) of the fourth ventricle is a mixed glio-neuronal neoplasm recently codified by the World Health Organization WHO Classification of Central Nervous System (CNS) Tumors (2007). To date, 43 cases have been described in the literature; most occurring in the

Solitary primary intracranial leptomeningeal glioblastoma invading the normal cortex: Case report.

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Solitary primary intracranial leptomeningeal glioma (PLG) is a rare entity of glioma. PLG arises from the heterotopic glial tissue in the subarachnoid space and usually grows there without parenchymal invasion. The present study reported a case of solitary PLG, pathologically diagnosed as

Infratentorial Glioblastoma Metastasis to Bone.

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Glioblastoma multiforme (GBM) is a rapid-growing central nervous system neoplasm. We report a case of GBM with extensive intramedullary lumbar drop metastasis and highly unusual osseous spine metastasis from a primary infratentorial GBM occurring 10 years after the initial diagnosis,

Low-grade neuroepithelial tumor: Unusual presentation in an adult without history of seizures.

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Low-grade neuroepithelial tumors (LGNT) show a broad histopathological spectrum and may be difficult to classify using current World Health Organization (WHO) criteria. A 57-year-old man came to medical attention because of headaches. The patient medical history was otherwise unremarkable. Magnetic

Clinicopathologic and neuroradiologic studies of papillary glioneuronal tumors.

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BACKGROUND Papillary glioneuronal tumor (PGNT) is a rare, recently described distinct low-grade brain neoplasm. This study was performed to characterize the clinicopathologic and neuroradiologic features of PGNTs. METHODS We reviewed the medical records of 16 patients with PGNT who underwent

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