“Malignancy” in meningiomas
نویسندگان
چکیده
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...
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CONTEXT Lymphangioleiomyomatosis (LAM), a cystic lung disease associated with progressive respiratory failure, is found predominantly in women of childbearing age and therefore has been treated with progesterone and other hormonal agents. However, meningiomas have progesterone receptors, and progesterone is believed to be a mitogen for meningioma cells in culture. Since 30% to 40% of patients w...
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Cytosolic estrogen (ER), progesterone (PR), androgen (AR) and glucocorticoid receptors (GR) were evaluated in 10 meningiomas using a dextran charcoal coated method. We consider as positive specific receptor values greater than or equal to 10 fMol/mg protein. In this study 20% of the meningiomas contained very low titers of specific ER. PR was detectable in 90% of the tumors, at high levels. The...
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The familial occurrence of brain tumours is extremely rare except for neurofibromas in von Recklinghausen's disease and cerebellar haemangioblastomas in Lindau's disease. There have been rare instances of intracranial gliomas, including astrocytomas, medulloblastomas, and oligodendrogliomas, occurring in two or more members of the same family (Munslow and Hill, 1955; Kjellin, Muuller, and Astrb...
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Among 98 surgically-treated intraaanial meningiomas. 12 (%12.2)patients with atypical and anaplastic meningiomas. are reviewed. All were operated between 1983-1994.Out of 12 patients. 7 (58%)had malignant meningioma and 5 (42%)showed atypical features histopathologicaiiy. Tumours in eight patients were recunences. most in grade 3 resected patients. showing the
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ژورنال
عنوان ژورنال: Cancer
سال: 1999
ISSN: 0008-543X,1097-0142
DOI: 10.1002/(sici)1097-0142(19990501)85:9%3c2046::aid-cncr23%3e3.0.co;2-m