vasogenic edema
Tumor necrosis factor-α-mediated threonine 435 phosphorylation of p65 nuclear factor-κB subunit in endothelial cells induces vasogenic edema and neutrophil infiltration in the rat piriform cortex following status epilepticus
... severe vasogenic edema in the PC accompanied by neuronal and astroglial damages ...Brain edema proceeds in two phases, early cytotoxic edema phase and late vasogenic edema ...
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Posterior Reversible Encephalopathy Syndrome, Part 2: Controversies Surrounding Pathophysiology of Vasogenic Edema
... Clearly the ‘systemic process’ is sufficient to establish a state in which neurotoxicity and the PRES imaging pattern develop. The vasogenic edema in these patients also resolves spontane- ously without ...
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Role of vasogenic edema and tissue cavitation in ischemic evolution on diffusion weighted imaging: comparison with multiparameter MR and immunohistochemistry
... PURPOSE: To examine the mechanisms of further evolution that occurs from the early to late phase after initial changes in diffusion-weighted imaging after cerebral ischemia. METHODS: Sprague-Dawley rats were subjected to ...
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Acute Cytotoxic and Vasogenic Edema after Subarachnoid Hemorrhage: A Quantitative MRI Study
... were reported for each subject ROI due to the possibility of indi- vidual voxel outliers within an individual ROI. Conclusions were unchanged if mean ADC values were used during ROI analysis and therefore were not ...
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Hypertension and Neuroimaging Changes After Bevacizumab for Retinopathy of Prematurity
... bevacizumab is the development of posterior reversible encephalopathy syndrome (PRES), which typically appears within the half-life of bevacizumab ( ∼ 20 days) but can occur anywhere from 16 hours to 1 year after drug ...
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Type of Edema in Posterior Reversible Encephalopathy Syndrome Depends on Serum Albumin Levels: An MR Imaging Study in 28 Patients
... Due to the retrospective character of our case series, we acknowledge certain limitations of our results. MR imaging protocols differed between patients, and ADC maps were not available for 9 of our patients. In those ...
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... mg and lovastatin mg once daily. From the imaging stud- ies, the chest X-ray was normal and a singular intra-cerebral neoplastic lesion was evidenced located in the left frontal lobe, associated with a large ...
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Magnetic Resonance Imaging of Cerebral Malaria Patients Reveals Distinct Pathogenetic Processes in Different Parts of the Brain
... The etiology of brain swelling in CM is unknown but likely to be multifactorial. The microvascular pathology of this neurologic syndrome is unique and mainly caused by the binding of P. falciparum-infected erythrocytes ...
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Distinct Imaging Patterns and Lesion Distribution in Posterior Reversible Encephalopathy Syndrome
... Three distinct PRES imaging patterns could be recognized in most of our patients. Dominant parietal or occipital involve- ment (most consistent with an isolated posterior appearance) and holohemispheric involvement were ...
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Quantitative Assessment of Diffusion Abnormalities in Posterior Reversible Encephalopathy Syndrome
... In our series, seven of 11 patients with markedly abnormal ADC values had normal-appearing DW images (Fig 1). In three of the remaining four pa- tients, only a small proportion of regions having elevated ADC values were ...
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Perianeurysmal Brain Inflammation after Flow Diversion Treatment
... In 7 patients with worsening symptoms after Silk stent placement, we first looked for an ischemic or compressive cause. We did not find any significant increase of the aneu- rysm sac after treatment. Furthermore, ...
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A 44-year-old man with eye, kidney, and brain dysfunction
... To summarize, this is a 44-year-old man who presented with two days of right frontal and parietal lobe dysfunction stemming from the tumefactive lesion involving almost the entire right hemisphere. Since age 38, he had ...
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Pleomorphic Xanthoastrocytoma of Childhood: MR Imaging and Diffusion MR Imaging Features
... RESULTS: Three pleomorphic xanthoastrocytomas had anaplastic features. Ten tumors were supratentorial. Two-thirds (6 of 9) of all tumors were either predominantly cystic or had cystic components, and three-fourths (6 of ...
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Candesartan Attenuates Ischemic Brain Edema and Protects the Blood–Brain Barrier Integrity from Ischemia/Reperfusion Injury in Rats
... of edema during reperfusion. Ischemic brain edema occurring during stroke per se is life threatening due to augmentation of intracranial pressure and herniation [8], and its conjunction with cerebral ...
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Intracranial extension of orbital inflammatory pseudotumor: a case report and literature review
... mild vasogenic edema as the only intra-axial ...subcortical edema, thus mimicking intra-axial pathology, which, in- stead, were demonstrated in our case using delayed CE- MRI ...
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Posterior Reversible Encephalopathy Syndrome: Prognostic Utility of Quantitative Diffusion Weighted MR Images
... is vasogenic edema in the territories of the posterior cir- culation, which can be reliably differentiated from cyto- toxic edema in other etiologies by using DWI and by calculating the ADC map, ...
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THE ROLE OF DIFFUSION-WEIGHTED AND FLUID ATTENUATED INVERSION RRECOVERY MAGNETIC RESONANCE IMAGING IN DIAGNOSIS AND TIMING OF ACUTE ISCHEMIC STROKE
... Regarding the 32 patients of group 2(FLAIR shows hyper-intestines in corresponding to lesions in DWI without relevant changes in CT), 9 out of these 32 patients (28.12%) were imaged within 12-24 hours, 20 patients (62.5 ...
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Brown–McLean syndrome: the role of iridodonesis
... The edema often spares the superior cornea between the 10 o’clock and 2 o’clock position (horseshoe- or U-shaped configuration) and adjacent to cataract ...peripheral edema in three eyes (patients 1 and ...
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B waves: a systematic review of terminology, characteristics, and analysis methods
... The source of B waves is unknown and although they are mostly associated with cerebral dysfunction, their clinical significance is unclear, as they may also appear as normal physiological phenomena [2, 3]. Their source ...
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Reliability of the STIR Sequence for Acute Type II Odontoid Fractures
... The STIR signal elevation is relatively insensitive for the presence of an acute type II odontoid fracture in patients 57 years of age and older, particularly in those patients with osteopenia. Further- more, ...
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