Meningiomas are the most common intracranial tumors. However, microcystic and angiomatous meningiomas are very rare subtypes that present unusual imaging findings. Hence, radiological diagnosis of these tumors can be challenging. We herein describe a case of mixed angiomatous and microcystic meningioma in an 81-year-old male. MRI revealed an extra-axial mass with high T2 signal intensity, measuring 1.5 cm in diameter, with multiple tiny intralesional cysts and entrapped peritumoral cyst formation. After tumor resection, a histopathological diagnosis of mixed angiomatous and microcystic meningioma was made.
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http://dx.doi.org/10.3348/jksr.2021.0119 | DOI Listing |
Objective: This research aims to examine the expression of carbonic anhydrase IX (CAIX) protein in hemangioblastoma of the central nervous system and its potential application in pathological diagnosis and differential diagnosis.
Materials And Methods: Immunohistochemistry was used to identify the expression of CAIX and the α-inhibin protein. The sensitivity and specificity of CAIX and α-inhibin for identifying hemangioblastoma of the central nervous system were compared.
Cancer Diagn Progn
September 2024
Department of Pathology, Medical School, University of Athens, Athens, Greece.
Background/aim: Concerning primary central nervous system neoplasms, meningiomas demonstrate the most common type in adults worldwide. Deregulation of apoptotic pathways in malignancies, including meningiomas, is correlated with chemoresistance and poor prognosis. Caspases represent crucial proteins that induce cell apoptosis.
View Article and Find Full Text PDFMeningiomas are the most common intracranial tumors. However, microcystic and angiomatous meningiomas are very rare subtypes that present unusual imaging findings. Hence, radiological diagnosis of these tumors can be challenging.
View Article and Find Full Text PDFNeuroradiology
February 2022
Department of Neuropathology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, 560029, India.
Purpose: To determine the magnetic resonance imaging (MRI) features which could pre-operatively differentiate chordoid meningioma (CM) from other histopathological subtypes of meningioma.
Methods: Retrospective analysis of pre-operative MRI of cases with histopathologically confirmed diagnosis of meningioma during the last 5 years at our institute was done. T1W, T2W, FLAIR sequences, and post-contrast enhancement were evaluated on a qualitative scale.
Cureus
November 2020
Neurological Surgery, Inova Health System, Falls Church, USA.
While hemorrhage is commonly encountered in various intracranial tumors, it is relatively rare in benign meningiomas. We present an interesting case report of a 75-year-old male who fell during intoxication, sustaining right frontal cranial trauma, coincidentally directly overlying a previously undiagnosed right frontal meningioma. He experienced an acute neurological decline and was found to have an intracranial hematoma, causing significant mass effect and herniation.
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