Intraventricular metaplastic meningioma in a child: case report and review of the literature

Childhood meningiomas are rare and display important differences from adult forms. We report the first case of an intraventricular metaplastic meningioma arising in a child. A 7‐year‐old female underwent resection of an enhancing tumor arising within the left lateral ventricle. It was composed of mo...

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Bibliographic Details
Published in:Neuropathology 2009-12, Vol.29 (6), p.708-712
Main Authors: Dulai, Mohanpal Singh, Khan, Abdul‐Majid, Edwards, Michael S. B., Vogel, Hannes
Format: Article
Language:English
Subjects:
Cerebral Ventricle Neoplasms - diagnostic imaging
Cerebral Ventricle Neoplasms - pathology
Cerebral Ventricle Neoplasms - surgery
Child
chordoid meningioma
Female
Humans
intraventricular meningioma
Lateral Ventricles - pathology
Lateral Ventricles - surgery
Magnetic Resonance Imaging
Meningioma - diagnostic imaging
Meningioma - pathology
Meningioma - surgery
metaplastic meningioma
myxoid meningioma
pediatric meningioma
Radiography
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Summary:Childhood meningiomas are rare and display important differences from adult forms. We report the first case of an intraventricular metaplastic meningioma arising in a child. A 7‐year‐old female underwent resection of an enhancing tumor arising within the left lateral ventricle. It was composed of monomorphic cells embedded within an abundant myxoid stroma. The cells demonstrated epithelial membrane antigen and vimentin immunoreactivity. Ultrastructural analysis demonstrated intermediate filaments, complex intercellular interdigitations and desmosomes, and a diagnosis of myxoid (metaplastic) meningioma was rendered. This case reflects the higher incidence of intraventricular meningiomas in childhood and greater incidence of intraventricular meningiomas in the left lateral ventricle. Recognition of the grade I myxoid meningioma in this case is paramount since chordoid meningiomas, which share similar histologic features, are of a higher grade and worse prognosis.
ISSN:0919-6544
1440-1789
DOI:10.1111/j.1440-1789.2009.01008.x