astrocytoma/edema

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Peritumoral edema and karyometric variables in astrocytoma of the brain.

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OBJECTIVE The aim of this study was to evaluate karyometry as a quantitative and objective histological method by showing correlation of some karyometric variables with the severity of peritumoral edema in patients with brain astrocytoma. METHODS 63 patients of different ages and both genders were

Perivascular edema fluid pathway in astrocytic tumors.

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Perivascular spaces are anatomical routes for the bulk flow drainage of fluid from the gray matter to the subarachnoid space in normal rat brain. Perivascular cells are the resident scavengers in perivascular spaces. Following focal brain damage, perivascular cells upregulate MHC Class II antigens

Relationship Between Cytogenetic Complexity and Peritumoral Edema in High-Grade Astrocytoma.

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BACKGROUND The purpose of the study is to reveal the association of cytogenetic compltyexi and peritumoral edema volume (PTEV) and its prognostic significance in high-grade astrocytoma patients by culturing patient tumor cells. METHODS Twenty-seven high-grade astrocytoma patients were divided into

Expression of brain-specific angiogenesis inhibitor 1 is inversely correlated with pathological grade, angiogenesis and peritumoral brain edema in human astrocytomas.

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As the most common intracranial malignant neoplasms, astrocytomas are characterized by high neovascularization and severe peritumoral brain edema (PTBE). Angiogenesis is a prerequisite for the growth of solid tumors, including astrocytoma, and brain-specific angiogenesis inhibitor 1 (BAI1) is a

Teaching NeuroImages: MRI changes of ictal cortical edema and tumor progression in a patient with astrocytoma.

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Unusual brain edema caused by an intracranial hydatid cyst: c ase report and literature review.

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The differential diagnosis of intracranial brain cystic lesions, including malignant lesions, abscesses and cystic astrocytoma, can sometimes be difficult even when using a sophisticated imaging technique. This is particularly evident in certain rare lesions such as hydatid cysts. In fact, any

Magnetic resonance dynamic susceptibility-weighted contrast-enhanced perfusion imaging in the diagnosis of posterior fossa hemangioblastomas and pilocytic astrocytomas: initial results.

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OBJECTIVE The purpose of this study was to compare the dynamic susceptibility-weighted contrast-enhanced (DSC) magnetic resonance (MR) perfusion and MR imaging findings between hemangioblastomas and pilocytic astrocytoma (PA). METHODS We retrospectively identified 6 patients with hemangioblastomas

Late adult onset optic pathway astrocytoma.

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A 70-year-old man presented with left-sided eye pain, impaired vision and restricted left ocular motility, later developing progressive visual decline with development of ataxia and incontinence. Fundoscopic examination revealed significant optic nerve head edema and hemorrhage on the left eye.

Intracranial organizing hematoma with papillary endothelial hyperplasia features after resection and involved field radiotherapy for cerebellar juvenile pilocytic astrocytoma.

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This article describes a case of organizing hematoma with features of papillary endothelial hyperplasia arising at the site of a right cerebellar juvenile pilocytic astrocytoma previously treated with surgery and involved-field radiation therapy. CTA demonstrated a mass with abnormal vascularity in

Optic nerve glioma and cerebellar astrocytoma in a patient with von Recklinghausen's neurofibromatosis.

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A 2 and a half year-old boy with neurofibromatosis developed unilateral proptosis, decreased visual acuity, and optic disk edema. After the discovery and removal of an optic nerve glioma, the patient had ten years of excellent health until he began having headaches, nausea, and vomiting. He had

Phase I/II trial of superselective arterial 5-FU infusion with concomitant external beam radiation for patients with either anaplastic astrocytoma or glioblastoma multiforme.

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From August 1987 through September 1989, 25 patients with either anaplastic astrocytoma (8 patients) or glioblastoma multiforme (17 patients) were entered into a Phase I trial of combined intra-arterial 5-fluorouracil (5-FU) and external beam radiation therapy. The intra-arterial 5-FU was given in a

[A case of a multiple sclerosis with severe perifocal edema].

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We present a case of tumoral multiple sclerosis in a 66-year-old male and emphasize two clinical features: (1) Multiple well-demarcated massive enhanced lesions except for the central area, which was accompanied with severe perifocal edema, occurred within the cerebral hemispheres and should be

A feline model for experimental studies of peritumor brain edema.

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An in vivo model for correlative imaging studies of intracerebral glial tumors and peritumor brain edema has been developed. Adult male and female cats implanted with 1 x 10(6) or 5 x 10(5) 9L glioma cells had parietal tumors of 4 mm or greater in diameter and showed signs of increased intracranial

Efficacy and toxicity of the antisense oligonucleotide aprinocarsen directed against protein kinase C-alpha delivered as a 21-day continuous intravenous infusion in patients with recurrent high-grade astrocytomas.

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Protein kinase C alpha (PKC-alpha) is a cytoplasmic serine threonine kinase involved in regulating cell differentiation and proliferation. Aprinocarsen is an antisense oligonucleotide against PKC-alpha that reduces PKC-alphain human cell lines and inhibits a human glioblastoma tumor cell line in

Cerebellar metastasis from serous adenocarcinoma of the ovary mimicking pilocytic astrocytoma.

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Serous adenocarcinoma of the ovary rarely can present with solitary solid -cystic cerebellar metastasis, mimicking pilocytic astrocytoma. A middle aged women, who underwent total abdominal hysterectomy with bilateral salpingoopherectomy and adjuvant chemotherapy for ovarian adenocarcinoma, presented

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