Meningioma is a common pathology in the central nervous system (CNS). It arises from the arachnoid cap cells of the arachnoid villi in the meninges, which envelop the brain and spinal cord. Therefore, a meningioma can occur anywhere from the vertex to the spine. It is often named according to its anatomical location. For example, a meningioma abutting the sphenoid bone between the frontal and t...

Cystic meningioma is a rare form of intracranial meningioma. Meningiomas are typically solid tumors but may rarely have cystic components. The diagnosis of cystic meningioma is clinically challenging as the finding of multiple intra-axial tumors, including metastatic tumors, is relatively common. We report a case of cystic meningioma initially diagnosed as a metastatic tumor from a recurrence o...

Primary ectopic meningiomas are extremely rare tumors of controversial origin and they are usually limited to the head and neck region. Its occurrence at the mediastinum is even rarer. There has not been any official report regarding primary mediastinal malignant meningioma until today. Because of its rarity and potential value, we report here a case of primary mediastinal malignant meningioma,...

INTRODUCTION One in every thousand intracranial meningiomas metastatize extracranially. Lung and intraabdominal organs are most frequently affected. Only 7% involve vertebrae and just a dozen cases have been reported in the literature. To our knowledge, this is the first description of a total en bloc spondylectomy through a posterior approach for the treatment of an intraosseous metastatic men...

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...

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...