نتایج جستجو برای: high grade gliomas
تعداد نتایج: 2178988 فیلتر نتایج به سال:
BACKGROUND Insulin-like growth factor-1 (IGF-I) is important in normal brain development but in the adult brain, IGF-I overexpression may be a risk factor for tumor development. METHODS We examined the association between circulating concentrations of IGF-I and IGFBP-3 in relation to risk of gliomas (74 low-grade, 206 high-grade gliomas), meningiomas (n = 174) and acoustic neuromas (n = 49) b...
Diffuse infiltrating gliomas are the most common tumors of the central nervous system. Gliomas are classified by the WHO according to their histopathological and clinical characteristics into four classes: grade I (pilocytic astrocytoma), grade II (diffuse astrocytoma), grade III (anaplastic astrocytoma), and grade IV (glioblastoma multiforme). Several genes have already been correlated with as...
BACKGROUND Gliomas are a heterogenous group of tumors that show the same histological features but differ in their behavior. Gliomas are characterized by biological aggressiveness and extensive infiltrative growth into surrounding healthy brain tissue. OBJECTIVES In this study we estimated CD44v6 and E-cadherin expression and correlation between CD44v6 and E-cadherin in relation to glioma mal...
BACKGROUND Glioma grading assumes significant importance in that low- and high-grade gliomas display different prognoses and are treated with dissimilar therapeutic strategies. The objective of our study was to retrospectively assess the usefulness of a cumulative normalized cerebral blood volume (nCBV) histogram for glioma grading based on 3 T MRI. METHODS From February 2010 to April 2012, 6...
BACKGROUND AND PURPOSE We investigated the relationship between tumor blood-flow measurement based on perfusion imaging by arterial spin-labeling (ASL-PI) and histopathologic findings in brain tumors. MATERIALS AND METHODS We used ASL-PI to examine 35 patients with brain tumors, including 11 gliomas, 9 meningiomas, 9 schwannomas, 1 diffuse large B-cell lymphoma, 4 hemangioblastomas, and 1 met...
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