introduction: meningioma is usually a benign brain tumor, but sometimes with aggressive course. the aim of this study was to assess the ability of 201tl brain spect to differentiate the pathologic grade of meningioma preoperatively. methods: thirty lesions in 28 patients were evaluated in this study. early (20 minutes) and late (3 hours) brain spect images were performed and early uptake ratio...

RATIONALE Meningiomas are mostly regarded as benign tumors histologically,accounting for 13% to 26% of all primary intracranial tumors.It is testified that multiple meningiomas occur in <10% of cases.A case of concurrent grades I and II in the same patient in our hospital was described. PATIENT CONCERN A 66-year-old man who was experiencing headache and weakening in the left limbs, which grad...

Introduction: Meningioma is usually a benign brain tumor, but sometimes with aggressive course. The aim of this study was to assess the ability of 201Tl Brain SPECT to differentiate the pathologic grade of meningioma preoperatively. Methods: Thirty lesions in 28 patients were evaluated in this study. Early (20 minutes) and late (3 hours) brain SPECT images were performed and early u...

The majority of benign meningiomas exhibit a slow growth rate and are associated with good prognosis. recurrence extracranial metastases meningioma rare. present report describes the case patient transitional for which total resection had been performed 8 years prior. Furthermore, transformed into atypical meningioma, metastasized to ribs. aimed describe clinical features pathological findings ...

Aim. To analyze the clinicopathological features of meningioangiomatosis (MA) associated with meningioma. Methods. We present one case of MA associated with meningioma. Histopathological examination and immunohistochemistry were used. Results. The age of the patient was 33-year-old man. Histopathologically, MA was characterized by vascular proliferation with perivascular meningothelial cells an...

It is still under debate whether occupational exposure to radio frequency/microwave electromagnetic fields (RF/MW-EMF) contributes to the development of brain tumors. This analysis examined the role of occupational RF/MW-EMF exposure in the risk of glioma and meningioma. A population-based, case-control study including 381 meningioma cases, 366 glioma cases, and 1,494 controls aged 30-69 years ...

Meningiomas are common neoplasms of the meninges lining of the central nervous system. Deletions of 1p have been established as important for the initiation and/or progression of meningioma. The rationale of this array-CGH study was to characterize copy number imbalances of chromosome 1 in meningioma, using a full-coverage genomic microarray containing 2,118 distinct measurement points. In tota...

The diagnosis of a tumor-to-tumor metastasis in the central nervous system most commonly involves metastasis to a meningioma. These combined lesions are often radiographically unsuspected and mimic a meningioma. Most commonly, the source of metastatic disease are carcinomas from the lung and breast. To our knowledge, fewer than a half dozen cases of metastatic prostatic adenocarcinoma to a meni...

Beyond the WHO classification of meningioma: using molecular diagnostics to guide management. Advancements in profiling meningioma are providing greater accuracy prognostication tumours.