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gliosarcoma/edema
Il collegamento viene salvato negli appunti
Pagina 1 a partire dal 24 risultati
Relationship of perfusion to edema in the 9L gliosarcoma.
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The relationship between tumor perfusion and edema was analyzed, with edema characterized as tumor wet/dry weight ratio. Perfusion of subcutaneous 9L gliosarcoma was measured by injection of 133Xe in saline into the tumor core, followed by gamma camera imaging of 133Xe washout kinetics. A
Computed tomography of gliosarcoma.
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Five cases of rare gliosarcoma are described with pathologic correlation. Because of its sarcomatous component, gliosarcoma tends to present as a sharply defined, round or lobulated, hyperdense solid mass with relatively homogeneous contrast enhancement and peritumoral edema. Sharp demarcation of
Interstitial delivery of dexamethasone in the brain for the reduction of peritumoral edema.
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Controlled-release polymers have facilitated the interstitial delivery of drugs within the central nervous system. In the present study, dexamethasone was incorporated into ethylene-vinyl acetate polymers, which were then implanted adjacent to a 9L gliosarcoma in the brain of Fischer 344 rats. The
The effect of dexamethasone on the uptake of p-boronophenylalanine in the rat brain and intracranial 9L gliosarcoma.
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The steroid dexamethasone sodium phosphate (DEX) is routinely used to treat edema in brain tumor patients. The objective of the present study was to evaluate the effects of DEX on the uptake of boronophenylalanine (BPA) using the rat 9L gliosarcoma tumor model and surrounding brain tissue. Two
Hypertonic saline ameliorates cerebral edema associated with experimental brain tumor.
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Cerebral edema commonly accompanies brain tumors and frequently leads to lethal intracranial compartmental shifts and elevated intracranial pressure. Therapeutic modalities for tumor-associated cerebral edema include diuretics, osmotherapy, and corticosteroids. Recently, hypertonic saline (HS) has
Gliosarcomas: magnetic resonance imaging findings.
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Gliosarcoma: MR features.
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OBJECTIVE
Our goal was to characterize the MR features of pathologically documented gliosarcoma and to determine if these features help differentiate gliosarcoma from other intracranial neoplasms.
METHODS
MR studies of six patients with pathologically documented gliosarcoma were retrospectively
Primary gliosarcoma of the brain: radiologic and histopathologic features.
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Gliosarcoma is a rare central nervous system (CNS) neoplasm with biphasic glial and non-glial malignant components. Here we describe the radiologic and histopathologic features observed in five cases of primary gliosarcoma. The mean age at diagnosis in the studied patients was 54.2 years; these
Depot delivery of dexamethasone and cediranib for the treatment of brain tumor associated edema in an intracranial rat glioma model.
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Treatments of brain tumor associated edema with systemically delivered dexamethasone, the standard of care, and cediranib, a novel anti-edema agent, are associated with systemic toxicities in brain tumor patients. A tunable, reservoir-based drug delivery device was developed to investigate the
Neutron capture therapy of the 9L rat gliosarcoma using the p-boronophenylalanine-fructose complex.
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OBJECTIVE
Intraperitoneal (IP) injection of the solubilized fructose complex of L-p-boronophenylalanine (BPA-F) produced higher boron concentrations in a rat brain tumor model than was possible using intragastric (IG) administration of L-p-boronophenylalanine (BPA). The effectiveness of IP BPA-F was
Preferential effect of synchrotron microbeam radiation therapy on intracerebral 9L gliosarcoma vascular networks.
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OBJECTIVE
Synchrotron microbeam radiation therapy (MRT) relies on spatial fractionation of the incident photon beam into parallel micron-wide beams. Our aim was to analyze the effects of MRT on normal brain and 9L gliosarcoma tissues, particularly on blood vessels.
METHODS
Responses to MRT (two
Gliosarcomas: analysis of 11 cases do two subtypes exist?
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There are conflicting reports regarding gliosarcomas. The goal of this study is to examine clinical, radiological, surgical and therapeutic aspects of 11 patients with gliosarcoma. Between 1993 and 2001, 11 patients with cerebral gliosarcoma were treated at our Institute. Ten patients underwent
Magnetic resonance imaging of primary cerebral gliosarcoma: a report of 15 cases.
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BACKGROUND
Gliosarcomas are rare tumors with mixed glial and mesenchymal components. Many of their radiologic features resemble those of other primary brain malignancies.
OBJECTIVE
To investigate the magnetic resonance (MR) imaging features of gliosarcomas.
METHODS
We retrospectively reviewed the MR
A cyclooxygenase-2 (COX-2) inhibitor compared with dexamethasone in a survival study of rats with intracerebral 9L gliosarcomas.
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Although dexamethasone is very effective for controlling peritumoral cerebral edema, it is associated with distressing side effects that decrease the quality of life for many patients. One potential mechanism to explain the ability of dexamethasone to repair blood-brain barrier dysfunction is
[Gliosarcoma with multiple extracranial metastases. Case report].
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A 68-year-old male was hospitalized because of headache, nausea, and disturbance of consciousness. Neurological examination on admission disclosed somnolence, disorientation, marked neck stiffness, papilledema, and quadriparesis. Computed tomography (CT) scanning demonstrated a round mass with
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