منابع مشابه
Edema and malignancy in meningiomas.
PURPOSE In recent years there have been many attempts to define a subset of aggressive malignant meningiomas based on histopathology and imaging technologies. The purpose of this study was to evaluate the level of peritumoral edema and its volume using the imaging technologies, computer tomography and magnetic resonance imaging, and correlate these results with the histological WHO classificati...
متن کاملPeritumoral brain edema in intracranial meningiomas.
Occurrence of peritumoral brain edema (PBE) in meningiomas has been associated with several factors in recent years, although its pathophysiological mechanism has not yet been fully elucidated. The aim of this study was to analyze the correlation between the presence / degree of PBE and factors such as gender, age, size and histological subtype of tumor. We analyzed the MRI images of 74 patient...
متن کاملThe role of steroid receptors in and pretumoral edema accompanying meningiomas
Background: Meningiomas are considered extra-axial and benign tumors. Though they are pathologically classified as benign, non-benign and other types, it seems that information derived from this classification cannot explain the behavior of the tumor. Pretumoral brain edema (PTBE) is one of the signs that has been less thoroughly studied, and still there is not a single consensus about its mech...
متن کاملRight orbital edema masquerading a hematologic malignancy
Introduction Multiple myeloma is caused by abnormal proliferation of plasma cells that affects more commonly African Americans. It classically presents with hypercalcemia, renal failure, anemia, and lytic bone lesions. The aim of this article is to present an unusual case of a 63-year-old African-American female with multiple myeloma who presented with worsening right-sided eye swelling for the...
متن کاملRole of vascular endothelial growth factor and matrix metalloproteinase-9 in peritumoral brain edema associated with supratentorial benign meningiomas Running Title: Peritumoral Brain Edema with Meningiomas
Background: Accumulating evidence indicates that vascular endothelial growth factor (VEGF) and matrix metalloproteinase-9 (MMP-9) play a central role in the development of peritumoral brain edema (PTBE) associated with human brain tumors. However, the roles of these proteins, particularly of MMP-9, in PTBE associated with benign meningiomas have not been elucidated. Objective: We investigated t...
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ژورنال
عنوان ژورنال: Clinics
سال: 2005
ISSN: 1807-5932
DOI: 10.1590/s1807-59322005000300004